use XPInstall as cross-platform installer for my java-application?

hi,

i need a good cross-platform(windows, linux and maybe mac) installer 
that i can us to create executable setup files of my application! i've 
heard some realy interesting things about XPInstall. one of that was 
that i can use XPInstall as "cross-platform installer"-creator for every 
application i want! is that true? how must i do that and what files do i 
need to use it? is there a tutorial in the web which shows me what i 
have to do to use XPInstall for me and my application?

best regards,
mseele