carrot.org templates

I need a donate button and a purchase tickets button to embed into my website. The templates are on [login to view URL] I wish to use [login to view URL], not write from scratch. They are a micropayment processor for small amount of purchases for online goods and services. The site relies on impulse purchases in small dollar quantities in one or two clicks without having to enter shopping cart info and leave the site. The buyer purchases an amount of any dollar value using paypal, then the site deposits the funds in a "web purse" to purchase instant downloads such as music, wallpaper, etc. The webpurse tracks the balance of funds for the buyer and the merchant. They also offer a donate or "tip" button using the same process. It's a pretty extensive site, that's why I don't want to write from scratch. They offer documentation on the site, I just can't get it to work. I need someone to work with me in getting the code into my website so i can offer the micropayments purchases for tickets and tips.