web server apache on lacie nwsp v2

Good morning, sorry for my newbies question, but i found the answer in help file (firmware ver.16) and in a forum but i didn't find it!
I would use my lacie nwsp v2 with apache web server and my web page (create in php) with dydns to look up in internet. Actualy my web page work on another lacie (5big) with original firmware Always with dydns, but in the future, i would move on nwsp v.2.
My first question is: how i can start the web server service? Because in a general page on information section i found a grey button relative a web server service and i can't click on to start! Second question: where i must put the files for my web page? there is a specify folder?
Thanks a lot for your answer.
Giovanni
I would use my lacie nwsp v2 with apache web server and my web page (create in php) with dydns to look up in internet. Actualy my web page work on another lacie (5big) with original firmware Always with dydns, but in the future, i would move on nwsp v.2.
My first question is: how i can start the web server service? Because in a general page on information section i found a grey button relative a web server service and i can't click on to start! Second question: where i must put the files for my web page? there is a specify folder?
Thanks a lot for your answer.
Giovanni