MarketPress: No review is showing

Boutique site: I cannot access the review from the product page. How to do it?
http://cbespritfrintegration.apps-1and1.net/boutique/pneumatiques__trashed/phare-avant-retro/
I have nothing in the review tab !
I have filled in the correct product ID ( a pain in the neck by the way) which is 1528 that I get from the URL when Editing the product ( do you have a more awkward concept ... is that meant to be convenient ? did I miss something ? let me know .... thanks for your time)
Thierry