I'm sorry, but you will /need/ Japanese for Togainu no Chi. I've never seen it not crash when somebody used it without installing and switching to Japanese. Are you absolutely certain that you have tried everything recommended in this thread:
http://aarinfantasy.com/forum/f49/t6...ling_any.html?
Another reason why Japanese installation might not be working is because you don't have administrator rights on your machine. Are you sure you are logged on as administrator?
If you are, I'd recommend posting screenshots of whatever error messages you're getting.