Every hackintosh I have gives me an mDNS error, but it's a one time deal, and doesn't repeat, nor does it crash my system. Not sure where to go from here either if you can't boot up using the Type11 CD, as that clears up my hunch it might be a bad network driver.
Here's a couple more things to try:
1. Boot with "-x -f" as boot options.
2. Boot off Type11 CD and then into the Retail DVD like you did to install. Once there, go into disk utility and select your OSX partition. Pick repair disk, and when that is done, repair permissions.
Hopefully one of those might help, if not, I would consider a reinstall as well (this time make a backup!)