I was on in May and I don't believe they have such a facility. I agree with the previous poster, get an extra memory card if possible. The other thing you can do is bring a laptop along and transfer pictures from the camera to the laptop as you go, thus freeing up space.
Cheers,
Michelle B.
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Now posting as MichelleP.
You should just get another card....another 256 will only set you back $75 or so, and it will be less costly than any service they might offer for such. Or if you have a laptop or a portable hard-drive take it.