On 1.8, Market version 3.2.0, you cannot purchase applications. As a workaround, you can revert to 3.1.5, if you had a Titanium backup. if not: get Market version 3.1.5 from here: Free File Hosting Made Simple - MediaFireninstall version 3.2.0 with Titanium backup. Reboot the phone. Go to the folder you downloaded the file (sdcard/download probably) and install the .apk file with a file manager like Astro or ES file explorer. Go to Titanium backup and restore version 3.1.5, it will appear in the list. Reboot the phone and you should be done. I already tried to purchase an app and it worked fine. before it was FC.