So, foolishly and unknowingly, when I rooted my DX I ended up deleting CityID cause it made me so angry. Unfortunately, now that I need to reinstall it in order to get to froyo, I cannot do so. I have what seems to be a valid APK for CityID, but when I go to install it, I get "Application not installed." I have read through many forums and people have suggested trying to install it through Astro and other file managers, however I have tried this and still cannot reinstall CityID. Any help would be much appreciated!