@Andrew Buxcey - can you tell me what error you get and I can probably give you an answer for it
There is an alternative method for searching which can provide slightly better results using Google site search. It works in a slightly different way in that it queries the search results it's scraped and indexed from the site. Google regularly indexes the site (multiple times a day) so there is a good chance that even content posted relatively recently will be returned.
It gets around the SQL database limitation on searches being restricted to a minimum of 3 characters.
Code:
site:zroadster.org bmw z3
If you put certain phrases in quote marks then it will refine the search down to that exact phrase (where possible). Google doesn't seem to have indexed this particular thread as yet though... give it time