Groupon type script edits, fixes and checks

We have a groupon type script from guruscript - we've have a lot of work done on it by another provider on here (brilliant work) but he's not currently available and we need someone to check some features and functionality and if necessary implement those features/functions - thing is the site is going live at midnight (UK time) with live deals - so we need someone checking this right away. Immediate issues are: 1. Coupon code – the coupon code is generated randomly(?) as a 12 digit number, they need this to be reduced to 10 digits – I’ve told them that this can be done, hope I’m not wrong! 2. Deals out to subscribers – I’ve realised that there is no cron job (which I assume would be needed) to send out the daily deal emails to the subscribers – also I have no idea what the email out (assuming there is one!) looks like. So bottom line, I need to either have it confirmed that there is an automatic subscribers email out, what it looks like and when it goes out – or for that feature to be built in – again as we’re live from midnight I’m really under pressure. Grateful for php experts who can work their way quickly and accurately through this script. On a side note - anyone thinking of buying scripts from [login to view URL] should seriously reconsider, support is non-existent.