Ok, Next time don't open the application in the volume. I did that and i fixed mine 10 minutes ago from it being on my Mac OS X Leopard Desktop.
Ok So you have been to Activity Monitor and ended ALL dbus-daemon processes.
as soon as you quit them quickly eject the disk. If you have already done that and you want to get it off your mac altogether simply double click on the process and in the window that comes up there will be three tabs.
On Default the tab will be on "Statistics" on the right of it is says "Open Files and Ports" click that and it will show info on where it is located on your hard drive. Delete the ones that have a similar code in them:
THIS IS MY CODE I GOT
There will most likely be Three of them with the same thing. As i said end all three processes and then delete it. then empty the trash.
Enjoy deleting gimp
I decided to try Gimp. It didn't work out too well. In fact, I couldn't even get it to install. I have the Disk Image sitting on my desktop and every time I try to eject it, it tells me that I can't eject it because it is in use. So I used a terminal command to find the problem and here are the open things on Gimp. I just need to know how to close these things so I can get it off of my machine.
(***** means there is personal info that is blotted out for privacy reasons)
*****-*****-mac-mini:~ *******$ lsof | grep /Volumes/GIMP\ 2.6.6\ Leopard\ universal
dbus-daem 174 ******* txt REG 14,8 775056 52 /Volumes/GIMP 2.6.6 Leopard universal/Gimp.app/Contents/Resources/bin/dbus-daemon
dbus-daem 174 ******* txt REG 14,8 302000 538 /Volumes/GIMP 2.6.6 Leopard universal/Gimp.app/Contents/Resources/lib/libexpat.1.5.2.dylib
dbus-daem 174 ******* 6r DIR 14,8 102 65 /Volumes/GIMP 2.6.6 Leopard universal/Gimp.app/Contents/Resources/etc/dbus-1/session.d
Now what do I do with this?