Looking at your account your credit balance is correct. Add both sets of the survey tc, the 10k purchase, and your winnings, then take off what you've spent. It's exactly right.
Regarding your stuff not showing, it's because you don't have permission on the computer to write the files.
I'm guessing your Mac's a family computer, so you'll need to get someone with an admin account (parents?) to either give you admin permissions or to change the permissions for Toribash so you can write to the application folder.