If you can use the Aquasuite right now then you already have the newest OS.
Open the Aquasuite and go to the menu display and hardware. At the bottom you can see the firmware and OS version. The newest OS is 2.03 and firmware is 4.07a.
Thanks, I went in and saw that I had 2.03 and 4.05 (I think...it wasn't 4.07). I then flashed it through aquasuite to 4.07.
The problem that concerns me is the brightness of my blue LED in the aquatube. It used to be just as bright as the red...I can make the red brighter or dimmer by a significant amount by adjusting the settings in aquasuite, but the blue hardly changes. Any ideas?