OSCommerce Modification to RecoverCartSales

[login to view URL] I have this modification Recover Cart Sales installed. I want two modifications for it: First, I want to see a report that shows for each day the number of abandoned carts as a percentage (abandoned_carts / (abandoned_carts + purchases)) for each day. This is so I can compare the abandonment across time. Second, I want to automatically send the email to any customers who abandoned carts 2 days ago. I will run this script from a cronjob each day. I want one kind of email sent to customers who have been to our store before and one kind for customers who are new. I want to see this all packaged up and working on your site, then you send it to me and I try it out on my site. I will put full amount in escrow and release when it is up and working on my site. I also would like to release this to the community as a contribution, so lets make the packaging pretty good.