Custom Tracking Script

Greetings, I am in need of a script that can track a user's actions as it pertains to entertaining advertisers CPA offers. Briefly, each user of my site is given a user ID. They need to complete one or more CPA offers to retain their membership. I need a script that will track each users adherence to this requirement. The user name or backend ID needs to be appended to which ever particular CPA offer they click on, as a "sub ID" so I can verify through my CPA network dashboard that they have indeed complete a offer or offers . ## Deliverables The users will have to complete offers once a month