More features does not a better product make. More importantly, you can have 100x times Veotag's features, but it won't matter unless you can make people understand, instantly what your product is.
Now I imagine I'm a random stranger on the internet stumbling across your site. You really have less than 5 seconds of time before I click off back to YouTube or something. I just don't have that much attention.
The location of the diagrams on your website is the least of its problems - it is almost irrelevant. I would suggest first getting rid of about 90+% of the text on your frontpage.
Paul Graham's suggestion to take a look at wufoo.com is a great one. That's one of the best homepages you can find on the net. Simplify simplify simplify and reduce reduce reduce.
Thanks for continuing to engage!