How can we integrate Microsoft FAST with SDL Tridion 2011 SP1?

Hello All,


Right now we are using SDL Tridion 5.3 soon we will be upgrading to Tridion 2011 SP1. While upgrading to Tridion 2011 SP1 we also want to use FAST FISE (SP 4) search engine for implementing search on the published web site.

Can anyone help us in understanding how this can be done with respect to Deployer extentions as well as changes in Content Delivery side (we have .NET implementation) and also Azure. Is there any API reference or implementation documentation available?