[Vaupell]

In general none of 3.x will work for 4.x styles or modifications.

then ofcourse i know there are a few that actually work from 3.5,3.7,3.8 but so few
its hardly worth mentioning, and can hardly really be considered a modification.

tip 1 : if you want to have your vb4 site maintain the same style as now
create a local server with vb installed, and create a style looking excaktly like your current.
graphics can possible just be copyed over, so you just need to gothrough the css and stylevars
depending on the style ofcourse.

tip 2 : modifications, same as a above, except it requires alot of work to get
existing vb3 mods to work on a vb4 board.

tip 3 : local server with vb4 running and take it one step at a time, when happy with it
upgrade the live, and import the styles etc from local.