There's something wrong with gk_penguinmail_J!15.zip: I keep getting the error message "Unable to find installation package" when uploading from my hard drive...
I tried uploading the package to my server and installing from URL instead but that results in a bad install.
All other templates and components install without problem – only penguinmail for 1.5 isn't working

I've set all directories to 777 so that should'nt be the problem.
Any ideas? Really appreciate the help
