The first thing you need to do is to get all your peripherals working[list=1][*]For your printer, use printool. It is fairly intuitive.[*]For your modem, use kppp dialer[*]Test your system to see if your HD(s) and CD(s) are working[/list=1]
Next, you should read everything you are interested in at [list=1][*]The Linux documentation project
[*]The RedHat Web Page
Also, you should go to a bookstore and get a manual: I like Red Hat Linux 7 UNLEASHED
, by Ball and Pitts, et al. ISBN 0-672-31985-3
I assume you are using a GUI, probably Gnome. I prefer KDE.
Don't know what packages you want to use, but just start clicking on various choices to see what happens.
When, not if, you get in trouble, take notes, define the problem clearly and post it on the net for help. The guys at this forum are very helpful.