When you add a file by default Tortoise does not send it to the repository or show the status of the parent folder as being modified. Here is how to change that behaviour.
I was having an issue with my shell overlays taking ages to show conflicts. This article explains how to make shell overlay refreshes much quicker in Tortoise SVN.
Strangely the revert to this revision disappeared on my Tortoise SVN. The solution turned out to be quite a simple one.
Shows how to get information such as who deleted a file, file history and more in Subversion.