MiniVend is quite powerful, but also quite complex. There are many new possibilities opened up with its conditional HTML, but also many pitfalls.
Read the documentation thoroughly, then inspect the sample
and simple demo pages for help. Pay particular attention to:
browse*.html
flypage.html
results.html
ord/basket.html
ord/checkout.html
These pages use many of the powerful features of MiniVend, and studying them will be instructive.