Hello DTH team, it's ok for me, I delete the sql tables, uninstall the component, download the latest DTRegister component today, and it works perfectly !!! the events registrations are recorded ! Thank you very much !
ps : i just get another display problem : in the frontend, the columns and the values are not verticaly aligned....
antonin... glad to hear it's working for you now. Regarding the display, I'm assuming you are referring to the events list on the frontend. See this post for answers to that:
http://www.dthdevelopment.com/component/option,com_smf/Itemid,34/topic,141.msg491#msg491
... and if you get a minute, please give DT Register and excellent review and vote on the Joomla extensions site! Thanks!