koen - not sure if you're still around. i 'saw' some of your code on another forum re searching but can't for the life of me find it. at present, i still use LIKE comparisons on my search sp's but am migrating over to full-text-indexing.
any chance you could drop off a copy of the stored procs that you used (and any other useful info). I've now started playing with the full-text-indexing malarkie but am unsure on the best way to implement the patterns. just thought i'd seen you add a few regex and NEAR expressions on your implementation, so didn't want to reinvent the wheel (again!!)
 also, how did/do you overcome the 'user instance' caveat when running the application against a user instance of the sqlexpress database??