I\'m connecting to my Subersion server (VisualSVN server 1.6.3) using Ankh v2.0.5250.202 on VS 2008
The current url for my repository is https://svnserver:8443/svn/f
The "switch" command is the wrong command to use!
You have to use the "relocate" command. Not sure if AnkhSVN has this though.
For the svn client, you have to use
svn switch --relocate FROM TO [PATH...]
(yes, it's the 'switch' command, but only UI wise - internally, relocating uses a completely different API than switch).