Acer Iconia A500 plugin

I have an Acer Iconia A500 and have installed Calibre on my NB (WinXP), Icannot find a plugin to suit my pad. The Pad is recognised as a device not a drive and no drive letter is assigned. I can access the device and see all the directories etc. Can anyone advise me which plugin may recognise my pad in Calibre or if one is under construction.

Cheers
Ken C :blink: