Myth
Feel free and post whatever you've got right now, I'm sure someone will be willing and able to help you out with suggestions/nitpicking.
Rpgramen - I'd still suggest against writing it as 19HD. There are several things that affect/base off HD specifically, such as for example Holy Word (and it's other-aligned counterparts), so your Actual HD does matter.
Rathan
To make it official, though others have allready answered the question well:
Your levels would advance as normal, save that you wouldn't gain the 'normal' base save/Base Attack bonus, instead replacing it with the epic progression used by ALL characters above 20th lvl. (Which is to say +1 saves every odd lvl, +1 atk every even lvl). For example if you chose to lvl up as barbarian, you'd be a 10 fighter/11 barbarian, with all the class abilities of a tenth level fighter and an eleventh level barbarian. Your attack bonus wouldn't increase, but you'd gain +1 to all saves.
Your character looks good except her sword costs 2,000 gp too much.
+7 sword costs 98,000, +2000x3(cold iron increase for three enhancements: +4, Holy, Ghost Touched)=6,000. total =104, you payed 106.
As for Fast Healing, I'd suggest following Shayuri's suggestions - Ring Of Fast Heal(300,000) or take it as an Epic Feat after lvling up. I won't be allowing templates, and even if I were, I find Feral kinda OP for its LA.
Onlythestrong - if you've got feats you can swap, Power Attack and Improved Natural Attack(Unarmed Strike) would be my suggestions for a damage buff to an unarmed fighter.
Salthorae -
Could I get some basic info on the Paragnostic Assembly?
Voidrazor -
I'm gonna say no to persistant scrolls
ALL
Just in case, I wasn't aiming my last comment at anyone in particular, I was just noticing a lot of custom items going around, and I'd kindof been hoping they'd be more unique things rather than just "+ X to Y, blahblah" items. No insult was intended in case anybody took it the wrong way.
I'm going to start up a Rogues Gallery right away, feel free to post your updated characters there, and I'll give them a final look-over.