Can't update anymore

[NR]

Hey!

I just tried to update my version of lay theme, because of this bug I want to fix:
http://laythemeforum.com/topic/3778/bug-with-cover-while-scrolling

But can't figure out how to. No "update now" is shown up. Right now I am on 2.5.6 and an unregistered version, because I have no license key (downloaded lay theme when it was for free, so no key).

Can you help me?

[mariusjopen]

Dear @NR

here you can see the overview of all the updates:
http://laytheme.com/version-history.html

You need to enter a serial number from now on to update.

Best!

Marius