visual basic questions

1. ill make public hacks but if i make my own private hacks, approximately how long would i have before it gets detected if i don't let ANYONE use it?

2. can the modules be used for vb 2008 express?

3. also, how much have the modules changed??? i was thinking about using my really old hack from june of 2007 but just changing the addresses.

a privatehack probably 1-2 weeks or if caught 3-5 days