While I have not received any acknowledgement from Purdue Univ for reporting the previous use of their reputation in the email solicitations, I have received another one from

HostingRecruitersWebsites.com

this time with 527 instead of 531 in the address. Everything else was the same. So they're still trying.
Mercenary, I received so much spam/junk at my Yahoo address I had to set the filter to so high it was sending all but a few actual junk messages to junk mail holding tank. It did send referrals from old friends who didn't pass on my new alternate address to their referrals to junk mail every time and caused alot of hurt feelings. So I just stopped using Yahoo for personal and work-related messaging except for specific Hotjob-related messages. Even the address where I received these emails has rejected emails from governement contacts who were added to my safe list when I sent them emails first! It's very frustrating.
Putting the address w/531 in my watch list only resulted in them changing to 527 to get around it. They already changed from Business Industry to Industry Business in their address.
Apparently the FTC isn't concerned since they're not "selling" products. The USPS goes after these kind of people who use mail for contact. That's why the culprits prefer phone and email for their phishing. Seems like there should still be some agency concerned with this type of criminal activity though.

From: ea1@industrybusinesswebhosting527.com
To: xxxxx@xxx.com
Date: Tue, 1 Apr 2008 11:03:25 -0800
Subject: Basis Administrator (Job Number: 0800303) Purdue University

Take care everybody...