First of all sorry but english is not my first language.

We have recently purchased Open Enterpise Server for 8 Users and we would like to use/downgrade to NetWare 6.5.
We have already installed an evaluation Version of Netware 6.5 on our Server but it seems that this does not allow us to grant all 8 Users access.
How can we embedd our newly purchased licenses in the evaluation version?
Where do we find the licensing file?

The NW6.5 ISO I downloaded from the
site contains a nfl file (302206484.nlf) but this is the exact same file as in the evaluation ISO.