Cd and manual for ds90

Question

When I bought my DS90 digital telescope it came with a manual and a cd. I lost them both. I know I need the manual to learn how to use it. I'm not sure if I need the cd that came with it I can't remember what the cd was for. I know I can hook the telescope up to my computer but do I need the disk too? It's the telescope that will find stars that you tell it to find.