FILE SHARING BETWEEN APPLE & WIN98

Hi

My name is Melt From South Africa.

I have a small windows network and one I-Mac computer connected to it as well.
At the moment the Apple is only printing to the network printer. It is a small WIN98 workgroup network. All the window computers see each other on the network just fine But the Apple is missing.
I want to share the Windows computes files and the Apples files on the Network but do not know how to do it.
Is there any one that can help ore provide a site that will help?
Mynetwork does use TCP/IP with each computer with its own address.
Thanks.