Re: " this is what i posted a coupe of days ago but i havent had a reply."
You did get a reply on how to get and install the needed drivers from the Snow Leopard install dvd. If you mispaplaced it you will have to get another disk from Apple for $29.00. If you update to Lion without taking the precaution of first cloning your Mac OS partition problems can occur. A direct Lion install with a existing BootCamp Windows OS can upset the partitions and screw things up. Do a search on this forum for more details.
Here are the steps I used to install Lion on two MacBook Pros with out any problems.
1. Use Yasu and Diskwarrior to prepare existing Mac HDD
2. Clone or update smart clone internal HDD to ext HDD
3. Restart from the ext HDD and select it as the startup volume via System Preferences / Startup Disk.
4. Install 10.7 Lion on the cloned ext HDD
5. Install Lion 10.7.1 update on the ext HDD if needed.
6. Restart the ext HDD with the newly installed Lion OS to test and adjust the preferences if needed.
7. Clone ext HDD back to the existing Mac HDD.
8. Reset the startup volume to Lion via System Preferences / Startup Disk.