encrypted disk

A couple of comments.

First, what's happened is that when you reinstalled the OS, you also reinstalled the Endpoint Encryption agent and a new key was generated for your computer.  While that key is great for C: because it probably reencrypted (or didn't, if you didn't install the agent again yet), it's no longer valid for D:, which remained on your system.

Second, Tim, SafeBoot doesn't use EFS, so EFS recovery tools are of no use here.

And third, you will not need to create a BartPE/WinPE disk to use WinTech, it'll load fine within Windows (tested on Win2k, WinXP, and I've heard it'll work over Vista, too).  Needing to use PE is a really common misconception about WinTech -- I think it has something to do with how McAfee describes it in the documentation.  You only need to use PE if you can't get into the Operating System or if you need to perform functions that you can't do while the primary OS is loaded.  

As far as where to get the software, you do not need to be Your SafeBoot administrator can download the WinTech recovery tools by going to www.McAfee.com, selecting Large Enterprise and then Downloads, clicking Login and entering your grant number.  Download the ZIP for the latest version of SafeBoot / McAfee Endpoint Encryption and open up the recovery folder for WinTech.  

Because you probably destroyed the SafeBoot file system when you reinstalled the OS, your SafeBoot administrator will need to load up the console and export your old computer object to a file and then you can use that to authenticate (along with a valid username and password).  Once you've authenticated, you'll have access to D:.

From this point you have two options.  First, and easiest (probably) is that you backup your encrypted data to an unencrypted (or more easily accessable encrypted) partition and then destroy the D: drive and recreate it new.  If the SafeBoot agent is installed and configured to reencrypt D:, it'll be reencrypted with your new computer key and you'll be able to access it fresh using no WinTech software.  The other solution is that once you authenticate against the DB using the object from the SafeBoot admin, you authorize using the Code of the Day from McAfee.  This code will only be provided to the support contact for your company.  Once you pass both of these, you'll be able to decrypt D: and then access your data as normal.