Hi
Anybody knows if there is a component or app, to redessign easily the flypage (products details) and checkout form ?
Thanks
The templates are easily redesigned/restyled using template & css overrides. http://docs.virtuemart.net/tutorials/templating-layouts.html
For checkout a lot of people use one of the commercial plugins, which are generally excellent and can save a lot of development time. eg from http://www.rupostel.com/ or http://www.virtueplanet.com/vp-one-page-checkout-detail