can't trace error!!!

greeting...

i'm trying to execute this phtml file which contains a connection to postgresql : http://rafb.net/p/xUOtZO49.html

it uses a function astar which is an add-on module for postgis defined in this file: http://rafb.net/p/XF3SaO30.html

when i execute this file i receive many errors: http://rafb.net/p/vQbxR525.html

a snapshot of the db table i'm using is here http://rafb.net/p/oKIR1a92.html



i've tried to trace the problem but could'nt get to the root.

does anyone know how to get to the root of such a prob.

i'm using pgRouting module (www.postlbs.org), mapserver, postgis-1.2.1
on ubuntu