Looking at your form, I'm not sure where the element named
"name" is. There's the PIDC field and a submit (I realize that
additional form code could be cut from the post, of course).
On the page called addtoauction.cfm, have you tried adding
the following to the top of the page:
<cfdump var="#FORM#"/>
<cfabort/>
Apologies if you've already tried this, but, if not, it will
spit out the entire form scope (or throw an error if the form scope
does not, for some reason, exist). From there you can see if the
form is being submitted and, if so, what values it's sending along.
I'm rusty on FB3, as it's been 4 or 5 years since I last used
it and the FB core was completely overhauled with version 4.
However, the only thing that caught my eye was the action
attribute. It doesn't follow FB conventions and an attempt to
access this page (addtoaction.cfm) in this manner would most likely
result in an automatic redirect to index.cfm.
As a test, try putting addtoauction.cfm in a subdirectory
(i.e., tests). Add an empty Aplication.cfm or Application.cfc file
(server/preference depending) to this directory so that it includes
both the App and Add to Auction files. This will prevent FB from
trying to force the redirect to index.cfm and should show you the
form submission details. If it works, let me know...