Moved: This thread is more suitable in Linux-Newbie and has been moved accordingly to help your thread/question get the exposure it deserves. It's not exactly an introduction. I have also changed the orginal title.
Like everything in Linux, becomming a network specialist is a process that requires time and hard work. Knowledge comes with experience. No shortcuts here.
The tool you probably need to access your shares is Samba. You'd probably also need a client (graphical one - you can use Konqueror) or a text mode one (comes with Samba) if you prefer console mode.