well the plugins i used were -
graphics - zero kosmos 0.97.1 - interlace off, bilinear on, 4xaa, widescreen on, 1920x1080
sound - zerospu2 0.4.4 - default settings
dvdrom - P.E.Op.S CDVD 1.3.0 - not much i can say for this, just mess about with the settings until it recognises the disc and plays ok, its different for different drives, start off with 2x speed and no cache and work your way up, just make sure its pointed to the right drive letter
gsdx is generally a much better graphics plugin but i found kosmos best for ffx, you can always find the latest build of gsdx
HERE, also if you cant get it to play your original ps2 disc try making an image of it and use linuzappz iso 0.7.0 plugin instead
was fine in full screen for me, perhaps the resolution your using is way off your monitors native? try gsdx that allows you much more resolution options, just set your resolution, set dx9 or dx10 if you got vista etc, pixel shader 3, no interlace, 16:9 or whatever and vsync, the key setting in gsdx is D3D internal res you've just gotta experiment and get it as high as you can without it either crashing or slowing down
found a couple more screens that i took, was a long time since i played it
http://i5.tinypic.com/72uu7tl.png[/IMG]
http://i19.tinypic.com/6nrmzvt.png[/IMG]
http://i8.tinypic.com/6jnadxy.png[/IMG]