tensh:
After migration I don't see forum activity icons, what might be wrong?
That's normal if there has been no new posts in your forums for last 7 days.
tensh:
It's not that related to migration per se, but I don't like the preview from markitup: it just takes the body of my site, and the preview doesn't look like it should. If there was any means to insert a div into this preview iframe, it would be great.
You mean something like
<div class="preview">
Preview text here
</class>
Yes, it sounds quite reasonable, I'll add a ticket for 0.6.6.
