vo on debian

I m trying to start vo on debian linux 3.0 :
- first it couldn't install in graphic mode, I got some java exception, in console mode it can be installed.
- then as I have installed it, it doesn't run with the default jre installed with vo : it gives me some java errors and I had to make a link to another java distribution in order to have the server launched. Now if I go in my browser on another computer and try to open the url http:/hostnameofserver:8082 (I have chosen 8082 as the port for vo) , it gives me the answer " bad request" and I can see a lot of error message from server: "Table 'vo.Task_Input' doesn't exist" in the server log-file, along with hundreds of java exception errors lines...
=> it seems like the database hasn't been created or not fully created ???

=> I already had mysql up and running for another application, it appears that vo uses mysql, so is there a problem if mysql is already launched (at the server startup). ?