So you want minimum pixels to be set at 5 ? do you realise you cannot see 5 pixels, 100 is the block size on the grid supplied made up of 10 x 10 pixels. You would have to sell a minimum of 100 pixels for even a coloured square to be visible, i doubt today people will pay a dollar a pixel, the MDHP site was unique, what theme are you basing your website on ?
Check out mine now it’s functional and let me know what you think its at http://www.olympixel.com i am charging $0.05 a pixel simply because there are a million and one ofe these scripts now on the net.
I am hoping that the Olympic theme will give it some leverage against others as they are on this year and the site hopefully would be repeatable in 4 years when the olympics start again.