Go to root GUI login, you will need a package manager installed, eg kpackage from kdeadmin
Use whatever browser,
and go to seamonkey releases (do a google}
dowload the linux targz file extract and install it to /home/user/.mozilla/seamonkey using seamonkey-installer in the extracted file and then you'll
have the latest version of seamonkey, no need to wait.
You may need the linux flash program too
extract and install in seamonkey plugins.
Just drag and drop the flash file to the /seamonkey/plugins directory
and go to their properties and add your user name.
Neat straight from source and no packaging required