Did you notice or read the Sticky Note at the top of the 7100 forum regarding disassembly photos of the 7100? http://www.blackberryforums.com/gene...ryfaq-com.html
Also... highly advised: Search this whole forum for the word "wet" and read thoroughly. Do NOT connect your battery or charger anytime soon, before you have read through this and tried the suggestions.
I used my 7100 for three more years after it got soaked, only because I followed the tips here.
Good luck with it... and get it a nice new holster if it survives.