The issue is most likely with the Rocket RAID card.... this is an entry-level host-based controller card. I doubt the drivers support TRIM.
In fact, you will most likely get better random perfomance on the ICH10R instead. SATA 6Gb/s is nice for sequential performance but random performance is much more important for an OS/app drive.
Moving the interface card to a different slot gave me 5GB/s access to the card and 300 MB/s access to the drive. Not quite what was quoted but a lot better, However the toolkit and the firmware upgrade still do not run. Are you saying this is a problem with the Rocket card? It does support TRIM and NCQ so does have drivers that do everything they are supposed to do.