RedlinE_crf,
Here is a link about spoke tightening that may prove useful.
http://dirtbike.off-road.com/dirtbike/a ... ing=spokes
If you like a good laugh look at Ricks "Don't Ask" Column
Several of us here have done trueing or rebuilding of wheels so don't be afraid to ask us.
Keeping them firm is just part of normal maintenance.
Don't go mad overtightening, that is why a spoke wrench is only 4 inches long, so you can't.
Clean, lube, tighten - get use to it you own a bike now.
Do it and you will have enjoyable rides, don't and you might have to push it home one day.
Read your handbook and get a manual as others have said - it's the best money you can spend.