I am doing a sketch about an awards show...I have the curtains in the background and I've greenscreened myself, but when I appear in front of the curtains, the writing on the curtains shows through my body....what am I doing wrong? Any help would be great. Thanks guys.

Just a shot at answering your question...

1- Check that you aren't keying out parts of your body. In the chroma key plug-in, it should have an option to let you look at the matte. The area that corresponds to your body should be completely white.

2- Check that your compositing modes for your tracks is "source alpha" and not "add".

Thanks for the response, Glenn....my "threshold" was too high...(which I fooled with before, but for some reason, this time it fixed it)..Thanks.