I'd say your best bet would be to backup your saves (just in case), apply the patch and see if that works...
I have no idea what you would need to change in your save game, so you're probably out of luck there.
If you're into modding yourself, you might want to take a look at the DS2 map file's start location settings to see if you can make a mod to change the default (to get around your problem).
Also, someone else may have a workaround... a good place to ask would be the GPGarage forums: http://garage.gaspowered.com/?q=gpgforumhome