You can try restarting your computer to see if that restarts the program and gets it to run. Otherwise, try the following:
Something you can try do to locate it is look in the start menu for a SparkPeople folder, if there is one, you can start it from there. To have it auto start right click SparkPeople connect and "create shortcut" then drag the shortcut to the startup folder. Now it will startup automatically when the computer starts up. If it isn't there in the start menu, you can look for the "SparkPeople" folder within the "Program Files" or "Program Files(86)" directory and then do the same shortcut steps as above.
Hope that helps,
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford
"No matter how slow you go, you are still lapping everybody on the couch."