Well there are a few thing you can try. First off if you have a problem, try using a more explicit title, like "How do I get rid of webrebates, moneytree, etc. spyware" This will ensure more people look at the question instead of passing it over because of the generic title.
For removing those problems I would suggest booting into safe mode by restarting your computer, and after you hear it beep start tapping the F8 key and once a menu comes up just choose Safe Mode, and then run your spyware program again and it should get rid of it.
If that doesn't work, try getting SpyBot search and Destroy, or AdAware. These 2 usually find things the other one doesn't and gets rid of it.
Lastly,
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