Re: I need tremolo advice!!
That angle on the bridge is because action is low on the treble side than it is on the bass side. Its normal for it to be slightly tilted.
Yours is TOO tilted but as its a 7 string its understandable that someone using a too thin low B string and trying to get rid of buzz might have raised it that far. Regardless, making the bridge 'level' will compromise the playability of your guitar.
Secondly, the cavity on that guitar has already been hacked up to make that tremolo fit. Its obviously not original hardware.
firstly - Route out the cavity so the trem block has COMPLETELY unimpeded movement along the WHOLE of its travel. That will solve your sticking issues.
Secondly, get the guitars action and string guage sorted out properly. Take it to a tech or do it yourself its your choice, but one side of your bridge is way out of whack.