The archive seems to go back quite a ways (for the exact amount of time archived, Mike would probably be the one to ask), but if you have a specific issue, you can always post a new thread and ask the question again. One great thing I've found here is that Mike, Graeme, Nick, Chi-Ho and the other gurus don't ever get impatient -- they'll answer the same question several times, and this forum is extra-friendly towards new users.