Browser Game Update

Hi We run a small online browser game, In our game we have an academy where users can take little courses to give them extra things in game etc such as extra life on their maximum life etc We are looking for someone who can change our current system a little or tweak it so it can include courses that will when complete add a % to the users total stats and not just one stat as we have right now, and are open to any new course suggestions you may have too We also require for users to have the ability to multi take some completed courses, meaning if they complete say the small life increase it becomes available for them to take again Site url, login and files will be messages to those who are interested, we need this done asap if possible Thank you Rob