enco has the worst support I've ever seen. same is for e-wells which I think is the same company. In addition e-wells is cheating.
VW-7088 has a black menu like oem units, so what do you expect from a "menu upgrade"?
For VW-7088 you can change the background images by yourself (actually for any Zoran based device discussed here). Look for the FrameHunter 1.1 in the German forum (china-rns.com).