There is such Russian saying: "We tried our best, you know the rest". 
Hi Zeke
Im not sure that comment will install any confidence in both current customers and prospective customers.
Ive tried with DIRECTORIES_PER_PASS set to as low as 1
Im using an 8mbit broadband connection (running at approx 7.5)
I have my own high spec dedicated server so I dont understand why it wont work....
Being a software developer, if my system crashed and I said... "I tried my best..." do you think I would deserve any customers ?
I know its not crashing but its certainly giving an error message back, surely you can figure out why this error is being displayed ?
Luckily I was only upgrading from 1.3.4 to sp2 and didnt modify the php files, only the skins so I never lost anything when I over-wrote the files.
Theres a LOT of customers, if not all, who are unable to get the store manager to work.
Would you mind posting the required system spec, or at least yours since its always successful ?
I have 8 PC's and 4 laptops and store manager stops at 40% of backing up on each and every one of them, Your tech guy said he managed to back up with my ftp details I provided...
This tells me, its not my computers and its not my server !!
This sounds like more of an elaborate scheme to make some quick money !
Please prove me wrong ! I love CS-Cart and support has been great but anyway, Ive written enough for 1 night !