Where should I be looking (Technical Help Needed)

[whotheheckami]

I need pointing in the right direction to find technical support for my PDA. I can't find out if my Sony Clie NR70v will take Memory Stick Pro cards. In recent months I've been using my PDA as an .mp3 player and I'm fed up of having to keep swapping the 20 or so tracks I can fit on the 3 128Mb memory sticks I've got. I could afford a 1Gb stick but it is in the Memory Stick Pro format and I don't know if it will be backwards compatible to the Clie. I've tried Sony's site without much luck because they have stopped supporting the Clie.