The question is whether you are using a router or not. Because if you are using just a modem. You won't be able to do any port forwarding. What router are you using? Do you know how to access the set up page?
I think it would be better if you get a router so that your network would work better rather than doing Ad Hoc or Internet Connection Sharing. Just my honest opinion. Ok?
I keep the once that are really important to me like "A walk to remember, Taken, Legally Blonde, If only". Which actually means I don't keep them. I usually delete them after watching. My Drive is only capable of 160 GB.