FileZilla: Converting site manager information

hello,
i have just downloaded the latest version of FileZilla (3.0.9.1), i user the version 2.2.32 for a long time, and i have stored too many informations in the site manager.
I thought to make some script to convert the old xml file the new format, but the new portable version stores the passwords in a clear format, the old version user an md5 hash i think it's not clear, (more secure for me, i hope the they include the option in new versions).

so if you have any ideas about how to convert such file, you're welcome.

thinks for reading.