I'm getting a really ugly error in IE8 when I use the spell checker. It's the same as the error that is talked about in here: http://our.umbraco.org/forum/core/general/11101-TinyMCE-SpellCheck-bug

I can see that someone has made a suggestion to create my own spell checker and inherit from the original or to override the implementation to a ceratin file. That's good advise and all but I honestly don't even know where to begin doing that... How would I go about inheriting from the original? Where is the second file that is listed? I'm honestly at a loss here and really need a solution for this ASAP. Please~