rumpybumpy,
i have actually written a mod that does this. you can find it over on expertzzz.com i offered it here on boonex as my one free extension, but for some reason it hasnt been reviewed. basically what it does is you overwrite your install directory on your dolphin site. there is a link on the top of the page that will in turn open a subsequent file that lets you pass your login parameters to the ftp server, and this will in turn fire off the chmod automation. as you continue through the see more installation you get to the point where you will need to reverse some of the file permissions and this is provided for you as well using the same method of logging into ftp, and passing the chmod requirements across the server.
Now to rebutt the statements about being unsafe on here, this may be true for whatever it was you were mentioning, but with this mod, you will be deleting it, as its a requirement to remove the install directory from the server after the install is complete. so i think i have provided what most would just love to have. not all are familiar with shell and CLI and it is an event to chmod 80+ files just to get an install.
i have actually written a mod that does this. you can find it over on expertzzz.com i offered it here on boonex as my one free extension, but for some reason it hasnt been reviewed. basically what it does is you overwrite your install directory on your dolphin site. there is a link on the top of the page that will in turn open a subsequent file that lets you pass your login parameters to the ftp server, and this will in turn fire off the chmod automation. as you continue through the see more
What I have was php which as mentioned and I forgot will work with php-cgi only.
I worked up the reverse permissions also before I was reminded it wouldn't work for all.