Hi Mark,
We recommend to modify existing block's files (php and html) so it will look as you wish.
Nevertheless you can investigate how the blocks are made. A good starting point will be to look at the code of some small block like Search or Languages.
WBR,
ViArt Support Team
Has anyone been able to create their own pages which allows then to use the relevant php file and blocks kind of like my own product listing or details page?