i have make a patch against debian package 0.90-2 for dia export.
Now it's showing parameters of methods but i have still problems for types.
If someone is interseting by this feature, and if it good, i can make a diff for put it in CVS
Patches are always welcome! If you could post it to the sourceforge patch manager, that would be the easiest way for me to keep track of it, to make sure it is integrated as I incorporate Dia support in the next major version.