Hi Everyone,
I posted a tutorial on how to add php in a block. I had written one a few months ago but it was messy. With 612, this one is easier. You still need to do the phpmyadmin thing, but this one is easier :)
Here's the link:
http://www.boonex.com/unity/blog/entry/How_to_Add_PHP_in_a_BLOCK
Please try it out and let me know how it goes.