Service Tax reverse charge mechanism for nav 2009

Dear Experts,

Can any body provide the patch and documents/white paper relating to service tax reverse charge mechanism for nav 2009.

Regards,

Raghavendra

The links are as follow:

https://mbs.microsoft.com/partnersource/support/selfsupport/taxupdates/MSDNAV2009Sp1Stax_India

https://mbs.microsoft.com/customersource/downloads/taxupdates/MSDNAV2009Sp1Stax_India