I can get to 1015 fine but can't get it to boot. Tinyumbrella Fix give a runtime error, Fix Recovery either gives a load of white text but doesn't actually do anything, or it will leave me in a reboot loop with the iTunes cable screen.
Two things:
The iPhone cable screen indicates activation is required. Insert an authorized SIM
TU crashing is not good. Something is wrong with your computer. Could be a virus, bad software, not running as administrator, set affinity on XP systems, read-only hosts file, etc etc.