Why do you stop using the print command at "Update My info? $C1. " ?
You can't ,mix html and php quite that easily...
Everything inside the <? ?> tags must be PHP,
everything outside the <? ?> is HTML
So, inside the <? ?> tags you put:
print "Update My info? ".$C1."."
or outside your <? ?> tags you put:
Update My info? <? print $C1 ?>
notice how you can start a small piece of PHP right in the middle of your html.