Ok after a little more investigation I found the problem
This mod will not display the style of the page if you have your css stored in the file system [ vb options >> Style and language settings >> Store CSS Stylesheets as Files? ]
The reason i had this set to "store in file system" was because of
THIS MOD
For now I am going to store my css in the database so I can use this mod

but would be good if this issue could be sorted.
Mark