Reply to Akai MPK mini not seen by editor software

I just bought an Akai mpk midi keyboard and I'm pretty new to this but I cannot get it working and was wondering if anyone could help.

As per instructions I installed the editor software (MPK MINI editor) . Then, before running the software I plugged the keyboard in and windows XP did the whole 'new hardware found', 'your device is ready to be used' thing. I then ran the software and the midiinfo menu came up. I am supposed to have 'USB Audio Device' as one of the options but all I have is 'microsoft'synthesiser' and 'Microsoft GS wavetable synth'.

When I plug my UA-25 Interface (which I use for analog inputs haven't used it with midi) into one of the ports and then start the software, 'UA-25' is also listed as an option in the midiinfo menu. So the software is capable of seeing USB controllers. In device manager under sound, video and game controllers I can see USB Audio Device. Under general it says Manufacturer General USB Audio and the location is defined as Location 0 (MPK mini). I have uninstalled and reinstalled this driver but to no avail.

I am so excited to get to use the keyboard and so frustrated that I can't. Any help would be greatly appreciated.