Shirt Pocket Discussions - backup to another Mac HD

I need to clone a PowerBook running 10.3.9 and (using SD 2.1.4) the only place I can save my data to is an eMac.

So, easy, I have the Macs connected by Ethernet and each can connect and mount on the other's Desktop. Because I don't want to erase the eMac drive I need to create a sparseimage, yes? And I choose to save the image over the network. So far so simple.

On running SD I get an error and the following in the log:

Code:

| 12:04:45 PM | Info |       created: /Volumes/networkadmin/Desktop/Powerbook.sparseimage

| 12:04:45 PM | Info | ......COMMAND => Setting ownership and access modes for '/Volumes/networkadmin/Desktop/Powerbook.sparseimage'

| 12:04:45 PM | Info | ......COMMAND => Mounting Powerbook

| 12:04:45 PM | Error | hdiutil: attach failed - Permission denied

How do I get permission?

Thanks!