BleepingComputer.com: Outdoor wireless access point

Hello I am perplexed with this problem I am having with a Demarc outdoor wireless access point set up . First a little history on the issue, I purchased this unit from a company in Trenton ,ME, three weeks after I received it the company went under. No support, so this brings ma to you guys OK I am a working certified IT tech but my knowledge in wireless is somewhat inside gui based. This unit is a ISP outdoor ,hotspot , router, switch, bridge, ras server capabilities and it is lunix based witch my Lunix knowledge is weak.
I just want to see if you guys can help me with a simple access point set up oh ya the range on it is 25 miles and I am putting it in my brothers lodge so the clients have wireless internet in the cottages the maximum distance is aprox 700 meters I also have a repeater.

Well if you think you may be able to help I will bring on more info with some interface setup shots and the acces to the unit is a ssh or tellnet using Putty.

Thank you
Bill