Well there are two ways from this. The way i do it, is to press Print Screen, then open Paint, Paste in paint and save, and re-do the process for all the images you want.
The second way which i think JB was refering to, is to open your screenshots folder located D:\Program Files (x86)\Auran\TRS2006\ScreenShots, and then using some software convert the .tga files into .jpg, however i dont know what program it is they use.
*Note: D:\Program Files (x86)\Auran\TRS2006\ScreenShots
Where mine says D drive, revert that to your local disk that TRS is installed on.
Where mine says (x86), this is if you are running x64 Vista, if your not, ignore this.
To upload images, you will need to sign upto a picture site, like
Photobucket, register, and then it is pretty self explaetary(spelling)
Hope this helps.
Sam