different 552 error, not sure best recourse...

[ycross]

K so i have read alot of the 552 error threads regarding Tour's and it looks like mixed reviews.
my question is this.
i have a mac on snow leopard
a blackberry tour with original software
maybe 20mg free of memory
just installed a BBM upgrade
just installed skype
then went to do a backup
it froze up and cancelled like 3 times during the "MMS" part of backup
So i ejected the "no name disk" and closed out of DM
then...unplugged my phone with the "clock" on black screen showing
then...after like 5 minutes of not rebooting by itself...i did a battery pull...whoops!
552 and i have like 1500 contacts
any hope?
i also have a pc that i connect to on a regular basis, if that makes the problem easier?
i dunno, any help would be great! pleeease!
and talk to me like im an *****, cuz i know i am
thanks in advance
ycross