would "warnings" be a problem? (or is that just the validator being over protective?)
most of the errors in the css are related to the scroll bar colors. those 8 errors indicate that the specific HTML coded color isnt real (but it is! promise!

the code, itself, isnt really wrong... just cant be validated (right?) -- the scroll bar colors DO work (at least in IE)
the other error, line: 199, is the last tidbit in bookies style sheet, which says:
but i dunno whats wrong with this part.