Oh, I thought you meant you didn't have an admin account. But I guess it doesn't matter. Yes, you can go directly to
http://www.kh-mediaflare.net/admincp, but some hook locations are executed no matter which page you go to (even if it's in the admincp), so you're probably out of luck until you can find someone with file system access.
ETA: I take it back, it looks like that directory doesn't exist. I've heard of some people renaming it for security, so maybe that's what's happened.