Lost with IRangeX iRX-IR8M

Hi.

I just buy a IRangeX iRX-IR8M and may be it's a great mistake.
First I come to this page to find some help but is confused to me. I need:
-Deviation manual for IRangeX iRX-IR8M
-Config manual.
-How upgrade FW and what FW I need to upgrade.

Sorry if this info is here but it's not easy to find.
I hope If you could help me.
Thanks!
Alu.

Thanks, good start point.