the only way to contact rapidshare is by sending a email ??
probaly if they do not answer then they are just not intrested
and that seems kinda normal to me that they are not that mutch intrested in it as it is hard to verifie the transactions and to link to a automatic system for payments with the up and downs it got all the time
if you are looking for a upload site then i can offer you http://boosterking.com
as it accepts bitcoin
but for rapidshare it would be hard to get that done , it would still be nice if it can be done
so my suggestion , send them a email and see what they do
Greets From PowerChaos