Hi again, I figured it out with a bit of research (it helps to know what these things are called)..
Any way, if your interested:
if ($HTTP_POST_VARS = $id) gets the info from the URL
and then you do your SQL thang like this
$sql = "SELECT * FROM tbl WHERE id=$id";
so then on your link you'd have index.php?id=1 and it'll do its thing for that record.
Hope this helps someone who was in the same boat as I was.
Regards
Brad