Need to remove something cooked into rom...

[mobius999]

I'm running an older rom with CHT 1.7. I love everything about my current setup, really just want to update to CHT 1.8. But 1.7 doesn't show on the list of apps to uninstall. And installing 1.8 just gives "mismatch" errors. How can I get rid of 1.7? I was just going to delete from reg and cross my fingers but I can see that causing issues.