There could be several reasons. One likely one is that you do not have a modern version of Mac OS X. G3s shipped with Mac OS 8.6 or Mac OS 9. They cannot run Mac OS X 10.5 (Leopard) at all, and can only run Mac OS X 10.4 with hefty and usually unsupported upgrades. In the Related links section, you will find screenshots of Mac OS 8.6, Mac OS 9, Max OS X 10.0, and Mac OS X 10.1, so you can get an idea of what those systems look like, and if they look like the one you are running. There is also a link on how you can upgrade older Macs, although it is probably not worth the effort.
you use it like a regular computer like is all computers are the same
Nothing and everything. Apple makes the Macintosh.
no they arent
Finder is the standard program on a mac, it is the same as Windows Explorer, it helps you look on your computer for any type of files that are on it.
No it doesnt....
Cause it doesnt like you
No - unless it is a regular Mac computer.
No, Corel Draw doesnt support Mac, but you can run windows application throught Parralels Desktop.
yes
No durple is not the same as MAC. However Durple can be used with a MAC system.
Crossover Games only lets you play games. Regular Crossover lets you run applications. Crossover Pro lets you run both.
Look in the bottom left of the Sims 3 case. Does it say - PC MAC. If it does, it'll run on a PC & a Mac. Same for all the expansion packs!