where is the field to look for a forum participant?

http://tinyurl.com/77aac66

There are thousands of them (if not millions!!) in there so you need to know something about the person concerned.

Good luck.

You can type their name in the Ask a question box and you will get a list of the posts they have participated in.

Some of these could be helpful:

http://forums.adobe.com/thread/903540

Along with the info, that others have offered, if you have a thread, in which the desired person has contributed, just click on their Profile to the upper-left of the thread, and choose "Send Personal Message" (PM).

Good luck,

Hunt