copying info onto memory stick

[katieperfect]

I have the Imate - Jam and I have bought a 2GB memory card. I also have a copy of Tomtom5, I have been told that it is possible to copy Tomtom onto the memory card so I don't have to keep swapping them. I have tried to do this using my PC pasting and copying but when I try to copy onto the "storage card" I get the message "Cannot create folder storage card".
What am I doing wrong?
I am also getting memory low audible warning but can't seem to copy anything onto the memory card.
HELP!!!!!

[Stevie]

you can copy the contents onto a new memory card but insure that the folder structure stays the same.