I wonder if these issues are people that use the voucher with a different account that is attached to the PSP?
The PSP can only be attached to one PSN account at a time. If you use a different account to buy and/or transfer the game to the PSP, it will not work correctly..
I've used my PS3 to get things many times with my 2000 as it is attached to my account.. My son downloaded a few demos with his account and tried transfer to the PSP and they woudln't work. Just saying..








