It should be in your e-mail. The mail that you used to register your product. In case you deleted it here's a quoute on the FAQ.
12. I received my registration benefits e-mail, but I deleted it by mistake. Can I get another copy of this e-mail?
If your copy of Express does not require a registration key, you may simply repeat the registration process; a new benefit mail will be sent to you. If you have a downloaded copy of Express and lost your registration benefit e-mail, you cannot repeat the registration process a second time.
NOTE: You can directly access the Registration Benefit Portal without need of a first or second benefit e-mail—as long as you have completed the registration process and use the same e-mail to login in to Passport at the benefit portal.
cheers,Paul June A. Domag
I was able to find the location of the VB book stuffed in a Blog area for MS, I was not pleased.
The C++ book I have not been able to find, same with J+.
VB location