im not really an expert but for passing information in session:
session_start();
session_register("sessionid");
session_register("name");
$sessionid = $PHPSESSID;
$name= $namefromformfield;
it will register all information you need.
and don't forget to add pagelinked.php?$PHPSESSID in every page linked
if it is just a normal form, i think you can use:
<input type="hidden" value="<? echo $name; ?>" name="name">
for each field, and it will pass to next page.