I've been getting several questions that basically involve the same type of topics, so I've decided to update How to Format Your Manuscript for Kindle and Nook. If you've bought it already, you can just re-download the latest version from Smashwords. The new edition contains information about what to do if you have a free WordPress.com account and a sample HTML mockup so you can see what everything should look like.
Also, several members on a writing forum I belong to were discussing how to track sales, and I thought I would share my sales tracking sheet. I've created it in Excel, and it calculates almost everything automatically, though you have to put in some information (such as the book's cover price) into the parts marked yellow, plus your individual sales data, of course. Click here to download a copy. It's a free tool for everyone.
You can modify it to track epub sales as well. I have a huge master Excel spreadsheet that I use to track everything, including my epub and self-pubbed titles, but I didn't include the epub sales tracking sheet in this one because it really depends on your situation, contract, etc. so it's harder to create a standard template.