question about SSR (Server and client) et SSR desktop edition.

Hi everyone,
Can you help me please, i have a problém...

1/ I would like take a backup (all OS+ Soft +++++) for 10 desktop (Windows 7) machine from an administration consol (Installed in Server 2008 r2).

I find SSR, i install it on a server 2008r2 but i cannot monitor the 10 client from this console, i have this error:

Error E0D3EBC0..... i cannot deploy the clients....
    * i Disable FW,

      * Connection is ON,

i don't know waht's a problem,

maybe because the client it's not installed, but i don't have the package for the client....

2/ My second question, what's the number of License, just 1 SSR server edition ??? and the client  ???

best regards