challenge with multiple share buttons on single webpage with Facebook business page

Okay, I've researched this for a few weeks now but haven't found the identical issue out there so here goes. Please read in detail before replying:

I have a site where I have multiple products on a single page and I want to add a Facebook share button next to each one. It took me a while but I finally got it to work partially, here are some details: 1. I can get sharer.php to work BUT I can only seem to share a single image for the page. I want to share the unique product images associated with the share button

2. I was also able to get the http://ift.tt/1bBvira to work for multiple images on my webpage AND I was able to associate a unique image with each share button BUT I can only seem to Share to my Facebook personal page (there's no options to select share to 'Business Page'). I want visitors to be able to share the products on my website with their Facebook Business pages I like to think that this is a common implementation but perhaps it's not..

Does anyone have any advice? I believe Wordpress has plugin which solves this problem but I haven't been able to figure this out for a non-wordpress solution.. I'm guessing I may need to implement iFrames but I can't find more info on this..