526242 Credits - change background flashgame and some PHP work

We need help for our project based on joomla Task 1 We have a puzzle flashgame that starts with by "getinfo"-URL, containing the imagename of background. The flashgame is developed to have different backgrounds. We want to have more variations now. - like "flower"-puzzel, "car"-puzzel", "town"-puzzel..... We have a form to upload games (for admin) and a form to let the users select a game. This works good for the existing game. We need script(updates) so that the users can select one game like "flower"-puzzel, "car"-puzzel", "town"-puzzel by one click. Internaly the script takes the right background for puzzel and start the flashgame sending "getinfo"-URL with right image URL. Its all database braced. We want in admin from a new field taking the new background image for puzzelgame. We did by hand a new variation of the puzzel, but we want it more easy. Task 2 We need in our admin panel a notice (like a red “!”) if a entry (text and images) are changed somehow. The best way is to create a solution comparing the date/time of images/text(entry) in database. After checking the entrys, we want to click on “!” and the “!” should disapear. Task 3 We have a form where users can “buy credits”. The amount will be saved in database. We need now the possibility to set these credits free by hand (at admin panel) after payment is done. After, the credits needed to be added to user. For each buy of credits there is a invoice. Maybe it's a good idea to use the invoicenumbers to set em free, for the case that the users buy more times credits on one day. Task 4 We have a map on website. We want that our game starts on the same position as the map is. Find a solution (if possible) to put our game over/instead the map (into a layer?). After the game is finished the map should be come back. Task 5 We have already some “anti-cheating” features, but its possibile to start the flashgame moretimes in browserwindows by copying the URL. Find a way to stop that. Task 6 When user chooseing a game in our form the amount will be transferred. When user buys more games (same game) it will be added, but when user buys a different version of puzzel the old one/amout will be overwritten. We need here a queue, like we have puzzel flower 100 times and after puzzel car 200 times. Task 7 We are working now with POPUPs, maybe there is a way to let them not be recognized by browsers as “popups”. We want to avoid that they will not displayed or blocked concerning browser settings. You need good PHP and mysql skills to solve the task. You have maximum 10 days to solve the task. Don't bid if you can't start immediately! Fixed price! No payments if the job is not done and bug free! We have a budget of 200$ for this task.