I think I might know which move(s) you're refering to for La Mariposa. The ones where you have to free-cancel with the H, followed by P+K? If so, the trick is after you hit H, just keep spamming P+K. There's a delay of sorts so even though when you hit P+K right after the H and she does the move, the game wont count it as part of the combo so you gotta keep hitting P+K until the game acknowledges it. Now, whether or not that's actually the case is another matter (haha) but at least that's how I managed to get past those.

With Ryu, the biggest issue is his multi-throws/holds and finding the correct timing. Waiting for the Combo Throw message to show up is already too late. The best way for me was to use the demo and watch as the inputs light up on the move details as the motions are executed and then kinda fudge it from there on your own.

Well, exiting the game and then starting it up again seemed to have resolved the Brad teleportation issue...

Ive been playing offline with the Throwdown option set to Off since day one and I still get the occasional slowdown and hiccups in the gameplay.

Also, another glitch I found as I was playing through storymode today... In the final part of Eliot's chapter where you have to fight Brad Wong and do the ground attacks, almost every time I knock him down, right before he hits the ground Brad will disappear like the start of Kasumi's teleport move, and then re-appear in a separate part of the arena.  Anyone else run into this issue?

Nevermind, just finished it.  Stupid command prompts. The holddown,back part is incorrect.  Best way to activate seems to be just regular qcb..

The first move listed in command training transitions into it.  PPP ufP+K.  Ive also bought the Prima guide (which Ive found out from playing, is a piece of crap and gives incorrect info) and that doesnt show any shortcuts into it either.  Im actually doing her command trainjng myself right now. 

Did you manage to get past #21 Ensei Raigekiken?  Supposedly holddown,back,P.  I cant get that sh*t to activate at all.  You got any tips?  And Ive already completed Ryu and La Mariposa which I think are the two biggest pain in the ass training ones.

just curious... ever resolve the issue?

i had the same problem with mine yesterday. i called sony today and they didn't know how to fix the problem. also, they couldnt help me because playstation network as a whole just went off line and they didn't know why so they were trying to get that fixed first.