How To Ignore Files & Directories
1. Right click on the directory or file you wish to ignore and select properties
2. Click the Subversion Tab at the top of the dialog box
3. From the dropdown list, select svn:ignore
4. In the text box below, simply type: "*" (without the quotes)
5. Check the recursive box
6. Click Set and Ok to finish.
Now, this file or directory (and all sub-directories if it's a directory) will be ignored by TortoiseSVN.