Wlan Adapter Installation

[Linux Noob]

I am a total Linux noob (Still working trough Linux for dummies)
But i'd like an internet connection with my linux os. I have an Siemens Gigaset USB Adapter 54. I'm Using the Fedora Core version that came with the book linux for dummies (6th edition) So i have no idea what Kernel i'm using.
Could anyone give me an Step by Step guide trough how to get the thing working on my system?

Thank you

(If you need any aditional information tell me where i can find it and i'll look it up)

[imdeemvp]

if you open terminal and run:uname -rit will give you the kernel version.....for your device you will have to see if this driver will work: http://ndiswrapper.sourceforge.net/mediawiki/index.php/Installation and check the list for your device