Thanks Yuri, that helps a LOT!
I can now open the library at Altium 14, but it comes with no footprint, do you think you can also embedeed the footprint and maybe the IBIS and other files inside it?
For the sake of completeness, this are my results:
1 - The "Imported Orcad Libraries.LIBPKG.7z.zip" comes with i.MX28 schematic parts, but with no footprint.
2 - The " Imported IMX28_EVK_REVD_SCH_1.PRJPCB.7z.zip " comes with the schematics of the IMX28_EVK and it appears to have a footprint reference but it's only a name, there is no footprint there.
3 - and the "IMX28_EVK_REVD_SCH_16_2.DSN.zip" has the orcad DSN which I can import now myself and it becomes the same as the two other files, with all the schematics libraries of all the parts in the EVK project...but again with no footprints.
Once I have everything perfect in Altium I will share the library in here so other people might benefit.