I just took the test feb 29 and passed tho I need to apply for ILR at the end of the year 2008.
the certificate they issued have to date on it so it doesnt matter if you take it earlier. (out of topic i know!!) i just want it out of the way....(the test)
btw, you can try this practice test online ( NOTE: After reading the recommended chapters in the Book)
Goodluck!