Hi Rachel, it doesn't matter whether you used your PC or your iPad when you bought iAccess. The important thing is that you were signed in to the same BrillKids Account where your Little Reader license key(s) is/are stored when you buy iAccess.
I just checked your account and confirmed that you've successfully enabled iAccess, so the next step for you is to download your courses in the Little Reader Touch app.
Unfortunately the
current version of our app is not compatible with iOS 7. We've just finished the new version and had it sent for review - hopefully the Apple review team will approve the update and launch it at the App Store very soon.
Once you see the update alert for Little Reader Touch, please update the app. You may then proceed with downloading your courses by following the instructions in this article:
http://support.brillkids.com/entries/21098491-How-to-install-and-play-courses-on-Little-Reader-Touch