I'm not using Jass etc, i'm using the standard blender 2.63 with no plugins. I assumed the standard '.dae' export would work for secondlife? I'm assuming this isn't the case now?
EDIT: I actually just checked the export, I didn't realise there was that button so thanks for the heads-up. I'll see how this works.
EDIT2: Seems to have worked. Feel live a bit of a div for not realising that simple button was there. Regardless, the mesh looks a bit funky but I think that just requires work on it rather than it being a problem. Much appreciated for your help.