I have WordPress 3.2.1 with wp-jalali installed, both work great.
However, the wp-jalali leads to a conflict with the plugin from blueberry called "Blubrry PowerPress Podcasting plugin".
Said plugin does install, but as soon as you acitivate it, you'll get either a blank page or a"Call to a member function get() on a non-object in query.php on line 27" error message.
Either way, it brings your site down and you'll have to manually delete the powerpress folder from the plugins directory.
This resolves the issue.