If you want testers badly enough, make a thread to call for testers. If that doesn't get enough, then you could PM a few poeple who'll be likely to help out.
I think it's best the way it is. If you have too many stickies, there's less room for other threads. If there's less room for other threads, some that don't get answered straight away could get quickly lost onto page 2, and who goes to page 2? Granted some do, but not everyone.
Out of interest, how many forum members are on your MSN contact list? You could ask them as well