I don't have the Noise Reduction stuff but just checked my account and all my software is listed along with SNs and download links. Do you have the SN somewhere else in an email or text file (both of which I keep) and/or have you tried this?
EDIT: actually the download links redirect to the Magix site. I logged into my Magix account which only showed Vegas 14, however, I was able to register Sound Forge Pro 11, Vegas DVD Architect 7.0, and CD Architect 5.2 using the registration numbers I had. Now they are indeed listed in the Magix user area under My Products. Sorry for your trouble but thanks for posting this as I may not have ever looked to make sure those products had actually transferred. I hope you get it squared away!