Downloaded new IDEA after some time, going back to svn after some time.. Firstly, if you remove a feature (internal svn), it would be nice to know the reasons why its gone available, not have to google for it. Dont bother sending that url, I found it, but it took long. The plugin page is allibistically silent.
But OK, installed Tortoise, left the default install path pointing to Program Files and now i says that 'C:\Program' is not recognized as a command. Who would have thought.
So i wrapped the path in ", ' I even tried url encoded space in despair. No, i did not try backslash ;).
Even if it was possible to escape, this is a bug, but i did not find a fast way to post in in your tracker.