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So, I spent a few hours trying things, and looking up possible solutions.... Eventually I was victorious ;D But, I didn't test it on Windows 8... Hopefully it will work for you too.
<a href='http://www.mediafire.com/download/wloe1fjsbboojko/WineD3D+1.5.22.7z' class='bbc_url' title='External link' rel='nofollow external'>http://www.mediafire...neD3D 1.5.22.7z</a>
Also, hopefully that 7zip format won't be a problem... Inside that zip, copy over ddraw.dll, wined3d.dll, and libwine.dll into your Iji folder. Then just run the game in fullscreen and hopefully most of the issues will be solved with all effects on.
Bugs I noticed with my brief testing:
VERY SLOW New game black border effect. But, once you get passed that you should be fine.
It might crash on you on certain dialog scenes, if you press escape the first time. Like after you skip to the first level, if you press escape the first time, it might crash. After that, it should be fine though... I didn't do a lot of testing though...
Tor and Asha2 battles run pretty well now, though there is at least one effect that is kind of slow. Didn't have a save to try the null driver level... uncertain if that still works.
You can download newer versions of that WineD3D, but that version seems to let you alt+tab, without it breaking.