yeah but it took 5 YEARS to get up to that version... Hell in 5 years the PS3 will have more updates then that... IF it is even supported that long
A lot of those updates are just fan tweaks and repairs to things that someone broke in a previous update.
In regards to your problem I never used the patcher just the manual method. You could try that and it should work. Unless one of the post-1.2 updates changed the executable file.
Either way you should see the 1920x1080 resolution in the options menu if it worked correctly. If it is not there then that is your problem.
If it is there, well... (shrugs shoulders)