SD mounting images as read-only in 10.3.9?

[trevyn]

Originally Posted by dnanian

I think the problem here is that your UID on the local system (501) is different than the UID of the authorized user on the share. The best way to work around this is to mount the image and point directly to the volume, rather than the file. We'll still automount, and since we won't be mounting as your UID, it should work as you'd expect.

This doesn't seem to work; as soon as I unmount the image, the volume disappears from SD's destination menu. In fact, automounting doesn't seem to be working at all on this machine; if I select the disk image file as the destination, then unmount the share, it gives me the 10.3.9 "hdiutil: create failed - Invalid argument" error instead of trying to mount the share as it does on 10.4.

Any idea on how to solve this, and/or how I would go about rectifying the mismatched UIDs?