For personal and financial reasons I'll temporarily discontinue uploading new releases of the 7Launcher project.
The launcher is not dead!! It will either be incorporated in the WP7Android Project or it will go payed/donate on the mar...
Just try reflashing without sync.
Reboot your phone holding volume key and enter the HSPL (the 3 color line thing)
Then run your ROM exe from PC (if it doesnt see the device on usb... just unplug and re-plug the usb in the phone)