DMX-RGB drivers from rgbdrive.com...any experience?

Does anyone have an experience of using the DMX-RGB drivers supplied by this site--->> http://www.rgbdrive.com/

They look like exactly what i need for a project,but i'm having real trouble contacting them,all my mails to the address listed on the site keep bouncing back which is a bit worrying.

Cheers,
mala