External Drive not mounting anymore. HELP!

I was messing with permissions. I was trying to restrict others from using my external drive. I do know that I never removed myself. Now I see that my external LaCie 250GB drive will not mount. Both 'Disk Utility' and 'Disc Warrior' see and 'repair' the hard drive, but it still does NOT mount on the desktop. What can I do? Please help!
Robert
Dual 2.5 GHz G5   Mac OS X (10.4.3)   60GB Video iPod

I opened a 'Terminal' window and discovered that it appears I changed the owner. My username is bobbysteele. I changed it from 'admin' to my username (it's truncated - bobbyste). The permissions on the external drive are as follows:
d---rwx--- 16 bobbyste bobbyste 646 Jan 7 08:01 Jukebox01
It appears the permissions should be drwxr-xr-x because that is the setting for all other drives and folders. How can I change the permissions? Please help.

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