2 cgi script executions, is it possible?

Hi there experts,

I've set up a form with the help of my domain providers cgi script that
allows me to store the form values in a excel file and also xml file
for future downloads. That page works fine by emailing me the results
and also stores the values on my sever space... I can't alter there cgi
script (because www.cedant.com doesn't want me too) so I'm trying to
extract the users email value, whatever they imput, and have that
become the TO: address to send to a dummy email address which I then
can forward (autoreply) some standard message back to the user.
<<--this is kind of like formmail.cgi

Currently the page I'm writing in all in html, but the tech guy at
cedant who was practically clueless of what I was asking him, told me I
could maybe do it through php???

I'm willing to do anything, but I really do want to keep the current
cgi for the form values--- can I excute more than 1 script with the hit
of the submit button? I might just have to have use formmail.cgi but
I'm trying to avoid a second page of submitting (unless I maybe use a
cookie, right?)

Thanks for reading this,

Doug