My yahoo email isn't working right now for some strange reason, but I'll quote myself from what I've told some members at RaceDepartment. "Hey,
The pssg files are just using gzip compression so you can open them
with 7zip, for example, and extract the file inside. Then it should open with
the pssg editor.
I don't really have the time to be making updates to do this
automatically, and considering CM hid the database.bin file again, it
makes modding pretty useless in my eyes, and gives me even less
motivation to make anymore updates." You can get further help from RD member