Mag 254 Bought 'already set up'

Hi guys,

First 'real' post - please don't ridicule!

Whilst in Spain I got talking to a few people who mentioned the Mag254 STB's.
Sounded great, so I saw an add in the paper, took myself to the shop and bought a box which was good to just plug in and away I go.
After doing some reading on this site, I may not be getting the full 'service' offered by other servers.

I've gone into the settings of the box, but I can't find anywhere to look (or add) the servers? Is it possible that the shop has disabled this option with their own bios/software?

I've tried to update the software on the box but I get an error message?

So my question is - would it be best to try reset to factory settings (could this be blocked by shop?) and buy a donation for another server (how much typically is this?)

Thanks in advance, and apologies for my naivety

MIB