So based on personal and others attempts, it looks like anyone with the Orange ROM cannot directly update to this, since none of the methods (orange update w/new NK.nbf, use of florins' modified updateer, etc). It does seem that the people succeeding have been running various flavors of Qtek ROMs. It also seems that, even then, there is not a consistent path - some can do the straight upgrade, others need fixed.exe, etc.
Any thoughts to a multi-step process, e.g. up/down/side-grade from current Orange ROM to Qtek 1.0x, then upgrade following one of the described paths?