I don't even see Moneybookers as a payment gateway option in their list of choices (which displays all and tells you if you can use them in your region).
When you go to purchase zen, what region does it think you are in? Because according to their sales team, anybody in the European region can only by in Euros. Still no answer though as to why we have to pay more and get lower amounts.
Err, sorry for the double post. Don't really know why Moneybookers is displayed as such, because they officially changed their name to Skrill some time ago.