Hi, iWeb has been discontinued by Apple.
First you need to research all the problems people are having with the higher OSX versions, & make sure you have a bootable clone of what you have just in case.
then you must get 10.6 if they still have it, install it & update to 10.6.8 so you have the App Store to buy & download the huge 10.8 Installer.
Snow Leopard/10.6.x Requirements...
* Mac computer with an Intel processor
* 1GB of memory (I say 4GB at least, more if you can afford it)
* 5GB of available disk space (I say 30GB at least)
* DVD drive for installation
* Some features require a compatible Internet service provider; fees may apply.
* Some features require Apple’s MobileMe service; fees and terms apply.
Which apps work with Mac OS X 10.6?...
It's been pulled from the online store & Apple Stores, so you have to call Apple to buy it, last I heard.
Call Apple Sales...in the US: 1-800-MY-APPLE. Or Support... 1-800-275-2273
how do you upgrade to the 10.6? what do you buy?
Looks like I am lacking in requirements?
How do I
get to 10.6?
update to 10.6.8?
then I buy 10.8 installer?
will these items get me the 5 GB of available disk space or will I need to buy external hard drive?
After all this can I download Mountain lion or do I need to do snowleopard first?
Model Name: iMac
Model Identifier: iMac8,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM81.00C1.B00
SMC Version (system): 1.30f1
Serial Number (system): W8*****ZE4
<Edited by Host>
Besides the good advice so far, I'd really consider upping it to 6 GB of RAM...
Do a Get Info on your Hard Drive icon on the Desktop, how much available space does it have?