Adobe PDF iFilter 9 for 64-bit platforms does not index my PDF files in SQL server database

hi all

I need your help

i have this asp.net site which works with sql server

it searches a specific word in the database with full text search

in my database i have a column of type image that holds a PDF file

i want my SP to search for given word in my file

so i installed the Adobe Ifilter

configured it and every thing worked fine

but after i moved to production Server and installed every thing the same way ...it did not create the index for the pdf files

i can search for doc and docx and even for xml but not pdf

i know i installed it correctly since it is working great in the testing environment

i used this link for the configuration

http://www.adobe.com/special/acrobat/configuring_pdf_ifilter_for_ms_sql_server_2005.pdf

the only difference i see between my Testing environment and my Production environment  is that

my testing has

windows sever 2003 sp2 with Sql server 2005 64 bit std sp2   -- works fine

my production  has

windows sever 2003 R2sp2 with Sql server 2005 64 bit ent sp3  --does not work, does not index my pdf files

can you tell me if there are problems with some environments ?

are there any known problems with this Ifilter ?

what should i do ..