How do you do it? I know there is supposed to be a link on the register tab, but all i see is a link to renew the subscription.

The expiration date was 8/20/11 if that helps.

Thanks

What is it exactly that you want to do?

if you mean rolback to before your expiration date you can't, but what ever version you have will keep working. it's just you won't be able to get any updates after that date. if you mean reset to default settings then go to advanced and click trouble shooting, and you'll see it on the bottom half.

I was looking to roll back to whatever version that I expired on two years ago. Right now I'm getting pop ups that are telling me I'm 20+ days into my trial and I need to register. I am hoping at the end of the 30 days it will have an option to roll back. Would just rather find it before then since it is kind of annoying popping up while I'm in the middle of something else.

you'll have to uninstall your current version and reinstall the version you paid for.

Well, the general idea is that you install the trial version and then buy the licence. While what you say kinda makes sense, I've never seen any programme that will install the current version's trial and after its period is over, revert you to your older installation.
You will see that, quite often, new versions can even change the settings with new features and make it impossible to go back.

In any case, what chucky said: you have to uninstall the new, reinstall the old. And for the record, no, there is no older version repository. Users are responsible for keeping a copy of the installation file of their last-valid versions.