AOL. Ouch.

I've never known anyone that could keep an AOL connection up for long enough to upload 15 meg...you are probably going to have a lot of trouble just keeping the connection open.

I would work on trying to talk them into DSL...it's not that expensive, and it will make what you are trying to do possible. If you can't talk them into that, at least try and find a better ISP.

If you can't get them to do either, you probably want to suggest they get somebody else to build this impossible dream of theirs...otherwise when it doesn't work, it will be YOUR fault :)

Sorry to be so pessimistic, but if I were you, I would run screaming from this job!