Ok, your paths do look ok for the most part. The "Hack Support File" directory should be a directory that you will not delete. Any hacks that have other files that are not normally included with the UBB package are stored in this directory. That way MultiHack can pull them out when it need to install or export.
When you say "always Fails", I am assuming that you mean the program is reporting that the modification failed, not that the program itself failed(crashed).
So, assuming that, if all mods fail, then for some reason the original source files cannot be found. In this case e:ubbwww. Are you sure your UBB files are located there?
Basically it all points to that the program is unable to find the source files in order to modify them.
