Nothing screams "poor effort" more than spelling WordPress wrongly (capital W, capital P) and using the wrong logo (http://wordpress.org/about/logos/)
Not to mention using a preview version of iShowU to record your video (which won't play, by the way) -- If you can't spend $50 on IShowU, why expect someone to spend $60 on your product?
I also notice your site isn't using pretty permalinks. And the pages don't validate either -- 29 errors in the home page, 24 errors on the example book store page.
As someone else mentioned you will need to fix the issue with IE, I'm not sure it's a problem with IE though: the same origin policy is a valid security concept (http://en.wikipedia.org/wiki/Same_origin_policy) and I'm surprised if it is working on other browsers, or perhaps the problem is something else.
Finally, I can't see any mention of licence on the site. Don't forget all distributed plugins should be licensed under the GNU GPL Version 2 or a compatible licence.
Month 2 of my premium plugin here, so can help a little bit :-). Are you at the next meetup? Can put you in contact with a few bloggers who will review you plugin for a free copy :-).
Also I wrote a post a while back where I gave away a copy of my blogger outreach spreadsheet with 25 sites I have had some level of success in promoting to. Maybe you may find it useful - http://bloggingdojo.com/blogger-outreach-25-bloggers-who-will-promote-your-wordpress-theme-or-plugin/
Hope that is okay, any queries, please let me know.
Cheers :-)
Rhys
I've spent some time on the plugin tonight following Mike's comments. Thanks for the feedback Mike, I hope you are as brutally honest with more of my ideas for plugins. I am not averse to constructive feedback.It's now IE friendly :) and I've sorted out the permalinks which was a random issue and I needed to manually mod my .htaccess but its there now.The boxwork with the small p will have to stay until my artwork man can fix this up.
Still looking for an alternative to the IshowU for the Mac OSX, does anyone use anything they'd recommend?