pool newbee

Hey all, I just got my frist pool. It's a used 30 foot above ground. It's in all most new shape. I just got a brand new 30 foot EXPANDABLE liner. This will allow me to dish the bottom to 60 to 72". Will this work ok? Just would like to hear from people who have done this before. I need to leave at least 5 feet from the edge of the pool. Any thing else I will need?
Also the paper work that came with the pool said I could use foam 3/4 inch sheets and skip the sand. Will this work or do I need the sand to? Also I did get the foam pool cove.
Will I need to get new pool bolts? ( The bolts that hold the pool togather? ) Or can I use the old ones? I am not sure on that. I would love any help anyone can give me.
Mike T. ( AkA mlt2 )