Thanks.
I've asked to the IT team to install a ubuntu server on a new server to get full access of the lamp configuration and so on.
I've hope to get it next month.
I'm new at Mantis. I want to install it on my compagny webserver (with apache & Mssql) But, when I select the "Mssql native driver", I have this message :
BAD database is not supported by PHP. Check that it has been compiled into your server.