Q: Why Can't I put whatever photos I want on my IPAD?

This may help you:

http://support.apple.com/kb/HT4236

You could try using a WiFi transfer app to move photos from different computers onto your iPad. There are several in the App store. I know that the I've moved photos from my regular laptop, a netbook, and from my iPhone to my iPad.

Anothere way is to use iCloud.  If you're a PC user, install the iCloud Control Panel software then you can upload pictures from the computer to a Photo Stream (iCloud), then have access to them from your iPad or any device linked to your account.  If desired, you can also copy a photo from Photo Stream to your iPad's Camera Roll or any album you desire.  If you're a Mac user you can do the same, but without needing the ICP software.

Another way. You can use a USB flash drive & the camera connection kit.

Plug the USB flash drive (works the same with an SD card) into your computer & create a new folder titled DCIM. Then put your movie/photo files into the folder. The files must have a filename with exactly 8 characters long (no spaces) plus the file extension (i.e., my-movie.mov; DSCN0164.jpg).

Now plug the flash drive into the iPad using the camera connection kit. Open the Photos app, the movie/photo files should appear & you can import. (You can not export using the camera connection kit.)

Using The iPad Camera Connection Kit

http://support.apple.com/kb/HT4101

Secrets of the iPad Camera Connection Kit

http://howto.cnet.com/8301-11310_39-57401068-285/secrets-of-the-ipad-camera-conn ection-kit/

 Cheers, Tom

You can drag and drop the photos from you Mac to your iPad without going through iTunes using a free app called Pic Share It.  All photos get automatically transferred and saved to your camera roll.  Here's video showing how it works.