Verifying whether the linksys speedbooster technology is active

I currently own the WRT54GS router, and the WPC54GS adapter. Firmware version for the router is v3.37.2, and the driver version for the adapter is

How can I verify whether the SpeedBooster technology is active in my connection? When viewing the link information using the wireless network monitor v1.0, the transmit rate shows as being 54 Mbps. Should this be showing as 'Speed Booster' instead? If this is an indicator that the speed booster technology is not active, what steps can I take to troubleshoot this so that I can get the speed booster technology to work? If not, what indicator is there to tell me that the speedbooster is active?