Desktop Intelligence Download and Other Questions

Dear Experts, I have few questions regarding Desktop Intelligence. Kindly answers them as it is very important for to provide this info to my client:

1) What the latest release of Desktop Intelligence (I'm aware of XI R2 version)? Where can I download it from (as I did not see in BO Downlaod area)? Is there a separate version for Server and Client machine?

2) Does it come with 32-bit and 64-bit version separately? Actually I wanted to see if this was compatible with Windows 7 on client machine?

3) can I create Dashboard from DeskI? Please guide me here?

Regards.