Relocating your working copy is made easy by TortoiseSVN:
Navigate to your working copy in explorer.
Right-click on the folder, and select TortoiseSVN | Relocate:
In the Relocate window that appears, enter the new path to the repository:
Click on OK.
If a password is required, you will be prompted for one. Enter it, and click OK.
The relocation process may take several minutes if your project is large.
You have just pointed your working copy to a different repository location. When you do this, Subversion changes all references to the old repository so that they point to the new one. The files in the working copy are unchanged. This means that Mowbray can now check in the changes that he made, as if nothing had changed while he was away.
Be careful when using the relocation option. You should use it only in cases where the repository address has changed. Using relocate at the wrong time could corrupt your working copy. A corrupt working...