Using TortoiseSVN against VisualSVN I delete a source file that I should not have deleted. Now this isn't a train smash because I can get the file back from the daily backup. However I would like to undelete it from SVN (VisualSVN) so that I can get the history back. However I can't work out how to do that.

Anybody know how to undelete a file from VisualSVN either using the VisualSVN interface or the latest version of TortoiseSVN?