asterisk users - Aug 2008 - Asterisk AGI and php problem....

I am having a difficulty with AGI and PHP. The following is my script 
agi file

#!/usr/bin/php
<?php
include("phpagi.php");
$agi = new AGI;
$agi->verbose("$argv[1]\n");
?> 

However, my Asterisk CLI returns this


AGI Tx >> agi_request: cid-to-acct.php
AGI Tx >> agi_channel: SIP/5073-0821eda0
AGI Tx >> agi_language: en
AGI Tx >> agi_type: SIP
AGI Tx >> agi_uniqueid: 1218834584.3
AGI Tx >> agi_callerid: 5305
AGI Tx >> agi_calleridname: unknown
AGI Tx >> agi_callingpres: 0
AGI Tx >> agi_callingani2: 0
AGI Tx >> agi_callington: 0
AGI Tx >> agi_callingtns: 0
AGI Tx >> agi_dnid: *86
AGI Tx >> agi_rdnis: unknown
AGI Tx >> agi_context: a2billing
AGI Tx >> agi_extension: *86
AGI Tx >> agi_priority: 1
AGI Tx >> agi_enhanced: 0.0
AGI Tx >> agi_accountcode: 5073
AGI Tx >>
AGI Rx << verbose "Failed to execute 
'/var/lib/asterisk/agi-bin/cid-to-acct.php': No such file or
directory" 2
  ==  cid-to-acct.php: Failed to execute 
'/var/lib/asterisk/agi-bin/cid-to-acct.php': No such file or directory
AGI Tx >> 200 result=1


I have both #!/usr/binphp and #!/usr/bin/php5 tried out with the same 
error....tried searching online with no help.

Any ideas?
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> '/var/lib/asterisk/agi-bin/cid-to-acct.php': No such file or
directory" 2
>  ==  cid-to-acct.php: Failed to execute
It is not complaining about the lack of "/usr/bin/php", but about the
fact that the file "/var/lib/asterisk/agi-bin/cid-to-acct.php" is
nowhere to be found.

Probably asking the obvious but...

Did you place the file in the agi-bin folder ?
Is it really named cid-to-acct.php ?
Is it executable ?
Does the user under which asterisk is running as the right to execute it ?

hth