You should look at the 2009 point charts for the specific resorts (linked above) and determine how many points you need for your vacation, then bid on renting that many points from a member on the rental boards. The renter will then book the reservation and list you as the guest staying in the villa. If you want to add ME or DDP, the member will have to do that as well during the approved window. The rules of this site are that members can't post an already reserved vacation for rent until 30 days prior to check in.
Please note that the above posts have been edited to remove resort and date specific info to comply with DVC Board guidelines of not offering/soliciting rentals anywhere except the Rent/Trade Board. Thanks.