[RESOLVED]How to upgrade and keep attached files

[regi24]

I've just upgrade mantis from 1.0.8 to 1.1.2 and I have a problem with attached files.
Before copying "uploads" folder from old mantis to new mantis, the name of attached files appeared crossed out. After copying "uploads" names appear ok but when trying to download them, it doesn't work properly. I mean, I download a 3MB image but it is no longer 3MB but 200bytes or so.

Thank you.

[regi24]

I've already solved it.
It was just a problem with folder and file permissions..