Further to my previous post, can I download direct to my Sd card? Trying to download a large app but it's telling me insufficient storage. Any help would be much appreciated (can you tell I'm not technically minded?)

Hi everyone, trying to get to grips with our Archos 70b, I've inserted a 32gb sd card as there isn't much room on the tablet itself, but can anyone telle how to move stuff from the internal storage to the Sd card? I've tried dragging and dropping, (no joy) and copying, but can't find the option to ...