Here's the full message from the thread:
Dear forum members,
I successfully created my 1st custom ROM for the HD7 Windows Phone with the new HSPL by cotulla
I used as a base this ROM:
The custom build is has the ability to be unlocked and to upgrade to MangoB2 thru zune
In my next build i will try to include mango and dfrouter for those not sync to zune
Thanks to my giant friends ervious, mamaic, bepe and cotulla
I hope to upload it today and some day to create an hspl too!!
Till next version enjoy!!
As you can tell, he's just as excited as you are to share this incredible milestone with the world. So where is the ROM? Ansar has promised to upload it and release it later today so we'll be watching for that download link. Stay tuned!
Update: It's available now! Click on the source link to go get it! Also just a note, the 'unlocking' of the device means it is jailbroken, not that the SIM is unlocked. Sorry about the confusion and we've corrected the article.
Source: XDA-Developers Forum