I used the original sheet to build the Tabbed Sheet, but I believe I had to make some field name modification because problems I was having and didn't fully understand how to build Character Sheets (I was learning as I went). Unfortunately, my time this weekend is pretty slim, so I can't do a comparison of the two to see what all is the same and what's different. Vince is correct, you shouldn't lose any information, but it may not populate on the sheet, but it would still appear on the Attributes & Abilities tab. When I get some time, I'll see if I can't do a comparison of what all the fields are on the original and what's on the Tabbed one to give an idea of what may be lost. Rodney's suggestion would be the quickest, though, as I don't know when or how long it may take me to put together that list. But I do think it would be a good list to compile and I'll include it in the Character Sheet Guide I'm working on for the Tabbed sheet for the future. Sorry it doesn't help you right now.