How to get a ISO of Mac OSX Lion? i Already bought a license.

Apple no longer sells OS X via media.

It's only sold via a remotion code that you use at the App Store and that's where you have to redeem the code voucher you get from Apple.

If you want a disk or flash drive version, you will have to download the installer, prevent it from running automatically, and then make a copy on a disk or flash drive. The installer is about 5 GB so you need a DVD or flash drive of sufficient capacity.

If you haven't gotten your redemption code yet, just wait - it's only been two days.

For a while, Apple did sell Lion on an official flash drive. But I highly doubt you could get one from them anymore. A real one looks like this:

Edit: Just noticed I was in the Mountain Lion forum. Your post just says Lion, which was the previous release. If you mean is Mountain Lion available on any type of media, then the answer is no. Download only.

The copy will keep you from having to download the installer again. You can make a bootable USB stick to install using this free program.

Bootable USB Flash Drive – Diskmaker X

i have a 128 HD SSD with mavericks running fine.

and i want to install another hard drive more big than this...

so i bought the licence, i want to do it with the "official" process... but i waste a lot of time in "unofficial" blogs...

You're already running Mavericks, which we would presume means you also already purchased it through your App Store ID (despite being free, you still have to "purchase" your own copy of Mavericks under your account). So why did you bother purchasing Mountain Lion? You didn't need it.

What blog? A blog is where one individual gives their opinion on various, or a confined number of topics. This is a user to user help forum where many very knowledgable people give their personal time for free to help others. If that's not acceptable, please let us know so we can spend our time helping someone who appreciates the effort.

All you need to do is clone your current install of Mavericks to the new drive. You can use Disk Utility to do that, or the either of two highly respected third party apps; SuperDuper!, or Carbon Copy Cloner.

Well, not quite that simple. All new drives come with the partition map as Master Boot Record (Windows) and formatted as either FAT32 or NTFS (also Windows). So you need to first completely repartition the new drive with a GUID partition map and formatted as Mac OS Extended. Use Disk Utility to do that.

i bougth this licence maybe by error, because in my understanding, Mavericks is for free, but you have to have the previous version running....

That is true, but there should have already been something on the Mac. Any version of OS X which is Snow Leopard (10.6.x) or newer can be upgraded to Mavericks without having to purchase and install anything in between. So for example, you can go right from SL to Mavericks without having to install Mountain Lion first. Mavericks is legal for you to install on as many Macs as you own in your own household.

if i have a new hard drive, or is damaged, what is the oficial process to setup a Fresh installation of Mavericks?

First and foremost is preparing the drive for the Mac. As mentioned above, all new drives are setup for Windows. Covered with your next question:

if i need to order media, download iso files, prepare a USB for boot, i will do it....i just need to have the process..

There is no media you can order, but you can make your own. Purchase an 8 GB flash drive. Download DiskMaker X. Have your downloaded copy of Mavericks on any drive that is mounted. If you installed Mavericks as soon as it was downloaded, then it was deleted at the end of the process and you'll have to retrieve it again. Go into your App Store account under the Purchased tab and click Download for Mavericks. When the entire file has been downloaded to your Mac, it will want to install. Press Command+Q to stop it. The file "Install OS X Mavericks" will be in the Applications folder. Run DiskMaker X and it will create a bootable, full installer for Mavericks onto the flash drive. You can delete the downloaded file if you want, or copy it to an external drive so you don't have to retrieve a 5.2 GB file again in the future.

This all presumes you have enough space on your current SSD for a 5.2 GB download and enough free working space after that. Bare minimum 5 GB free space. 10 would be preferable.

Once the flash drive has been created, put your new SSD in your Mac. You don't mention what model you have, so I have no idea how easy or difficult this may be. Put the flash drive in a USB port and turn on the Mac. Immediately hold down the Option key. When you get the screen to choose a startup disk, click on the flash drive and continue. From the minimal work screen that appears, click Disk Utility. Choose the physical drive name at the left of your new SSD drive. Click Partition at the right. Where the drop down says "Current", change it to however many partitions you want. If you only want one partition (the entire drive), choose 1 Partition anyway. You must do this to unlock the Options button at the bottom. Click Options and choose the radio button for GUID. Click OK. GUID is necessary for the drive to be bootable. The format should already be Mac OS Extended (Journaled). Click Apply.

Your drive is now ready for installing OS X. Exit Disk Utility and click the option to install OS X.