It seems that for some reason, you can't install the full after the trial.
There is a program called total uninstall, and you use that to install programs.
It monitors the registry and some other things, then installs the program, and finds what is changed, made, deleted.
http://www.martau.com/index.php
Only took me about an hour to figure it out, it's really simple, just hit install.
I didn't try it yet because I haven't formatted but after you format, use this to install everything.