Damaged my registry by trying to clean it, need help.

I need help i just ran the Windows XP adware, spyware, malwayre and virus removal process thats listed in a thread in this section on my work computer for a second time, and this time i was able to go through the entire procedure without the computer freezing or ending the programs prematurely.

My problem is that now Paint.net won't work, Microsoft Office is asking me to reinstall some files and my Recycle bin won't work.

I know adware and spyware might cause problems when trying to run a program that they are linked to but MO, and Paint.net?

I tried reinstalling Paint.net and it still won't work and we don't have MO cd here to reinstall that. Also whats up with the recycle bin, it won't let me access it or drag and drop files there.

Also acrobat keeps telling me to register, eventhough i say i don't want to ever, it always pops up and google keeps trying to make its self my main search provider.

Also I tried using system restore to restore to a couple of different points, as this process was executed on Thursday the 16th. I went back as far as a month and there isn't any difference in functionality or appearance of the desktop.

This process kinda did the same thing to my sig rig, now my clock is always on military time and i can't fix it to show the 24hr standard.

Also this morning my start menu bar and clock have disappeared from the desktop, whenever i move my cursor there it just shows it as busy.

I really need help, Thanks in advance.
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