Package 11 and definitions version: why so old?

I've imported the SEP 11 packages into my SEP 12.1 RU2 infrastructure.
Then I've exported the packages with the "All Content" option as I usually made; the "setup.exe" is 236MB for the 32bit and 240MB for the 64bit version.

I've installed one of this package in a Windows 2000 Server and I expected to have the latest definitions (referring to the moment of the creation of the package, yesterday).
The result is different: the 11 package seems to be deployed with, on board, a very old definitions set... as you can see in the picture.

I don't want the clients, just deployed, have to download the full content from the Manager...

So, what could I do?

Thanks in advance!