hi help needed for another newbie

Hi all another newbie needs an helping hand.
Ok here gos.I've got a binatone b350 but can't get any updates.I've seen a members post
Here were they have used an sdcard to boot into igo maps or something and a tute how to install
this but for the life in me I can't find this post or posts any help would be very greatfull.
Many thanks in advance.:-)

Easy... tools-tutorials-f170/guide-binatone-devices-t6936.html

Cheers for that my friend I maybe asking afew more questions.