[Chameleon] gszAppWebPath

[andy]

Dear all,
I have installed chameleon in a Win2003 server with IIS pc. I'm starting 
with sample apps, in particular "Sample using simple images for buttons".
All seems ok:
-I see the map
-I see the keymap
-I do not see in example the pan arrows of the PanArrowsLayer

I have also:
PHP Notice:  Undefined index:  REQUEST_URI in
PHP Notice:  Undefined index:  dirname in 
C:\Siti\mapserver\chameleon\htdocs\chameleon.php on line 1466
PHP Notice:  Undefined index:  dirname in 
C:\Siti\mapserver\chameleon\htdocs\chameleon.php on line 1467

Is it something related to gszAppWebPath bug?

I have:
-MapServer version 4.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP 
OUTPUT=PDF OUTPUT=SWF SUPPORTS=PROJ SUPPORTS=FREETYPE 
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER 
SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER INPUT=POSTGIS INPUT=OGR 
INPUT=GDAL INPUT=SHAPEFILE
-php 4.3.1

Thnk you,

Andrea