Adminpanel (form) update under joomla php work

We have a joomla based project with entrys. Our Adminpanel is based on a form (Chronoforms). Two task to do: 1. We need in our admin panel (already existing) a notice (like a red “!”) if a entry (text and images) are changed somehow. I think 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. 2. We have a form where users can “buy credits” (and get some freegames also). The amount is saved in database (a form is already existing). The buyed credits or freegames should be on a "suspense account". We need now the possibility to set these credits free by hand (at admin panel) after payment is done. After that, the credits needed to be added to user (account). For each buy of credits there is a invoice (working already). 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. You need good skills (PHP and mysql) to solve the task. !!! Don't bid if you can't start immediately. !!! You are welcome when you have really good knowledge !!! No payments if the job is not done. !!! You have to work online on server. !!! We have a budget of max. 200$ for this task. !!! The job has to be done in 10 days.