i don't see any subsystems like scaners or zoltan sheild, no subsys?
Nope, at least not yet :)
I had spent some time on a ship starting to upgrade and farm, but i encounter 5 pirates in the same place and died in maybe 4second, any way to prevent this ? Or only blind jump ?
For now only blind jump, Scanning the sector before jumping to it - will be added in later versions.
Why official server not running the 0.7 ? No musics or i have bugs ?
a0.5 has events configured for an openworld MMO server type.
a0.7 has events configured for a scenario coop play through, where the server starts with 1 ship for the players, and if it is destroyed, you need to restart the game/server. Fortunately you can now do this from the ingame menu.
I advise you to run a local server for you and your friends with version a0.7 and try out the coop story(it can be played solo too, but it's not as fun as coop).