Could some1 please advise me with the name of addon that shows u rating of ur opponent team at the end of match , cheers ))

You can try out an addon called "Arena Historian". This saves arena data after every match and shows you some info, including opponent rating. As it is calculated with rating change, no armory data will be needed and the configuration is very easy.

you can try "proxymo"or somethink like that and you should use some macros....