Raising funding will be hard for this type of product. MS Access for the web is an extremely hard business model to raise any funding for. You have a platform you can build stuff in - what is your market for sales?
So they may be worried for good reason. Your product has a lot of uses, but no clearly defined market.
What I would do is take your product and figure out what the top 10 tiny niches are for it and do some testing/analysis. A good example here is the guys who do the restaurant ipad/mobile sites. Why are they just attacking the restaurant space and not any website? Surely the technology is the same. The reason is they chose the best battle they could. Consider doing the same approach - you have a general platform that could be very useful for many individual uses.
Then when you have a very clear concise business, market, customer growth strategy, basically a good story in one little niche - you could have more success with funding.