Here's the whole FAQ:
Is it important for the AES nominees to return the WAES form?
It is ESSENTIAL that the nominee return the WAES form. If a recipient does not give HEAB the name of the Wisconsin college he or she will attend, via the WAES form which is sent to the student in the spring, then HEAB cannot complete the student's record to allow for release of the funds. Also, if the student is not using the funds at a participating institution, he or she MUST release the scholarship before an alternate may receive it. Delays in sending the information and in sending the release to HEAB mean delays in awarding an alternate.
Were you awarded the WAES last spring? If so, it says you should have gotten the form last spring.