Sometimes, a Finder or application window will open partially or completely off the screen, and cannot be moved back into a visible area; most often, this happens if one of the monitors is removed from a multiple-monitor system. In this situation, the whole window can be moved back into a visible area by opening the Script Editor in the /Applications/AppleScript/ folder and running the following:
tell application "Finder"
set bounds of window 1 to {202, 103, 817, 508}
end tell
Replace the application's name and the window's number as necessary. The window can be specified by number or by name.
Stupid frikkin os x. I hate the window manager. It sucks and sometimes some windows get into places where you can't resize them. This is the bit of applescript you need to fixx0r anything.