Welcome to Pocket PC Addict bnpositive! I'm sorry to hear that you are having problems with your "new to you" PPC-6700. I'm glad that you are still "bnpositive" after the bad update.
Being a victim of bad updates myself, I'd recommend checking to see if you can at least charge the unit. Also, see if you can't get it to flash again, sometimes even if it looks dead, it may not be fully dead. Last but not least, if all else fails, I'd recommending calling UTStarcom (1-800-229-1235) and telling them what happened. Is it still under warranty? If so they should be able to replace it since it wasn't your fault.
Good luck, hope you can still be postive after all this!
-Tim