WD Raptor on Abit AS8 M/B

Hi

I have just installed a Western Digital Raptor on my Abit AS8 based system with a fresh install of windows xp. The Raptor is now the system disc and is running windows. I also have 2 other IDE hard drives for data storage.

I have noticed that the Raptor is only running on 100 rather than the 150 its capable of, I also noticed it is on Udma 5 rather than 6. When I look in device manager it shows the disk driver as being the same driver as my IDE drives are using - is this right?

The truth is I am not sure how to set this up to run as it should do and I don't quite understand the manual about the bios settings. I really can't see from the manual what I should be setting and to what even after reading it through and through. Can anybody tell me how to set this up correctly - any help greatly appreciated as I'm going nuts about this. I really need a step by step explanation to this as I am not at all familiar with serial ata.

regards

Phil