TeXlipse spell-check configuration

I'm turning kind of desperate looking for a way to enable spell checking in TeXlipse. Of the application itself I am very fond. I've tried things I found here and on other forums, and on the user manual (http://texlipse.sourceforge.net/manual/spelling.html), but I can't find clear instructions to configure spell checking, i.e. what path directory to choose, where can I find .dict files,… I mean step-by-step instructions from the beginning to the end. The User Manual entry is too vague for me.

I'm using Mac OS X 10.6.6, Eclipse 3.6.2, TeXlipse 1.4.1.