Nice job Sprite_tm. I wish I could test it :-/
I upped the usb poking tool to
http://blld.org/spmp305x/tools/spmp3...sb-0.1.tar.bz2 . Currently only supports Linux. I have Windows version that compiles using lcc but it's on another computer. To use this tool, you have to first make the device re-enumerate(*) itself using FRM pro. In this process FRM pro uploads something to the device and initiates a re-enumeration process. In this process it just disconnects from usb bus and reappears as ready to use.
Getting rsv info for instance is enough to make this happen.
Under Linux, VirtualBox should be a good choice. usbmon is great for looking at usb traffic.
As I said earlier, you can find the register names in FRM Pro installation folder.
* there is some question whether this could be considered as same process defined in usb spec.