you'll need some code which checks if the full product page is displayed and then display the form
PSEUDOCODE:
start outputbuffer
pagecontent()
$check = outputbuffer
stop outputbuffer
If $check = details-page of bakery module
echo $check
show form
else
echo $check
remember, this is no actual code, so it won't work ... just to give you an idea what to look for.
cheers
Klaus