Wireless and vga drivers for sahara laptop model

First of all, go by this site and download the standalone version:

http://www.astra32.com/download.htm

run it on your Sahara and make a note of the actual hardware you're trying to find drivers for ie: exactly what wifi card is installed, and what video chipset. You'll have to write it out, the free version of Astra won't let you print the results. After that, simply go to the hardware manufacturers' home pages and grab your drivers.