Andrew, Before you can use Custom Sheets you need to be a Pro Subscriber (or the person hosting the game needs to be, anyway). I don't have time to do a lot of heavy lifting with custom sheets at the moment, but am always happy to answer questions and offer advice... The advice I'd give at the moment would be to look at the code for some of the existing character sheets and see how they are constructed. It's especially helpful if you there is already an existing sheet that is similar to what you want to do...then you can crib a lot of the code from that sheet. ;) When I first got into creating character sheets that was how I learned. HTML and CSS aren't too difficult and the character sheet authors are always happy to help answer questions if you get stuck.
