Dumb Ipod Question

[1sttimelongtime]

I have a question, most likely a dumb one...

I purchased an ipod touch (1st generation) a few months ago and filled it mostly with stuff I've gotten from the generous people on this board. The little exclamation point thingy shows up next to almost all the songs, but that is no biggie because they still play on my ipod.

I would like to update the ipod to 2.2 - my question - if I do so will I lose all the music on the ipod? If I lose it, I think I will have to go back and find all the links on this board and reload all that music. I do not want to do that!