Though I do not know much of setting up RAID, from what I have read in the Forums and elsewhere you should follow some steps like these. If I have missed anything, i'm sure someone will correct me.
1. Secure erase your SSD's - make sure the 100MB partition is wiped too.
2. Go into BIOS and double check your SATA Ports are set to RAID.
3. Run Win7 install from either your DVD or USB drive. There is a tool on Microsoft's site that puts all the files from your DVD onto a USB stick. An 8Gb one should be big enough.
4. Watch the screen as it copies the basic files, you need to make sure you hit the right key to install your RAID drivers(F6, F5 I am not sure...I do not pay attention at this part as I don't use RAID). Make sure you have the latest RAID drivers from your SSD manufacturer.
5. Install RAID Drivers and set up RAID 0
6. Install Win7
Though can I ask for a list of the hardware you are using, that will make things a little easier to help troubleshoot
