[TYPO3-commerce] Basket empty

[jaco graaff]

Hi - I followed the tutorial on:
http://wiki.typo3.org/Commerce
and
http://www.sk-typo3.de/Shop-aufsetzen-mit-commerce-Quickt.286.0.html
all pid's are set - 

I use:
templavoila for templating (with the templavoila framework)
TYPO3 Ver. 4.7

I just can't get the basket to work
I add products and articles - click on both the 
Add to Basket
and
Submit form
options - the basket-empty page opens up

Any way for me to debug this?

Thanks