if i was to use a fiverr clone to list items to sell (other peoples items - not mine - posted by the "sellers") (and listing products to sell as oppossed to "services" , i.e. listing goods that would be sent through the post, how would this work ? (or would it work ?) because if a seller lists an item that they only have one of, and 2 people buy it, then this will cause problems, multiply this by loads of items and it would be a nightmare. so is there a way round this ? or is there an alternative script that would be more suitable for this ?