My user account on my iMac G5 isn't working correctly?

Hello all,

I recently downloaded a program called "Secrets" on my iMac G5. This program tweaks some simple settings such as changing the dock from the glassy 3D to the 2D black dock. After tweaking a few things to what I thought would help my computer faster, I restarted it. Everything was working well, but when I logged in I noticed some issues. The top right part of the transparent bar wasn't loading. The bar itself was, but the time, ethernet icon, and bluetooth icon were not. I ignored this, as usualy it took a decent amount of time for it to load. However, then I tried launching Safari. The icon bounced as usual, but nothing happened at all. I tried loading system preferences, it clicked, but nothing happened at all. The same goes with everything else. Even attempting to click on shut down wouldn't work, it would just click and nothing would happen. I attempted to boot into safe mode, same results. I fimally found something that seemed to work, I logged into the guest account and from there, everything was working perfectly, which brought me down to thinking this is a user account related problem, probably because I installed that program "Secrets" on my main account only. Is there anything I could possibly try to get my main account working again? If not, is there some way I could transfer my programs from my old account to a new created one? (I tried, but I was told I didn't have sufficent permission to access my main account's "Applications" folder.)

Thanks again for reading my problem, and I hope I could get some help.

~Nick