Well, start taking screenshots. You're using an ancient Shishi and getting errors with opening .spr and ISOs when there's no reason you should be. Whatever's going on is so obscure we can't troubleshoot "the sprite is messed up". Details, pictures, specifics. For example, when Xifanie asks "what version" the right answer isn't "um, an older one". The more information you provide, the better help you can get, especially since no one wants to interrogate the info out of you.
Download the newest version from Tools in the wiki, as well.