Gabriel,
I don't know where to find the Catalogue Particles plugin or what to use
it on to test,
but my first guess is that you need to use colons for the text fields
(and check that 'Aarea' doesn't have an extra letter 'a'):
//----------
call("ij.Macro.setOptions", "Sort='Aarea' Order='Ascending' Redirect='stones1.JPG'
Background='Black"');
run("Catalogue Particles");
//----------
Perhaps the colons are not necessary, but the "Aarea" looks like a
typing mistake, which would then flag the dialog to show.
Albert
--
Albert Cardona
http://www.mcdb.ucla.edu/Research/Hartenstein/acardona