Download software?

my Lexmark X1150 instalation CD does not work anymore. where can I download the software that is on the CD? I tried the Lexmark site but the only thing I could find to download was the Driver for the X1150 I downloaded the driver and unziped it. it sent the INFO to a file but there does not seem to be anyway to install the driver? I can see everything in the file but can't install it.
All this happened after i had to Uninstall the program because of a problem with printing.
I am using Windows XP SP2 Home ED I have a lot of unused space on my hard drive.
Any help appreatied

Robert
April 2008