There are no icons and no dock. There is nothing to click on.
Perhaps too late for you, but it's a good idea to have a "emergency" admin account you can log into to conduct repairs if your primary account breaks down. Do you happen to have another admin login on the computer? Running the latest combo updater would be the next step I think.
If you don't have that, if you have access to another mac running the same version of mac os x, you can boot your computer in target mode, cable it up to the other computer, and run the combo from there. At this point I would place odds of that successfully fixing it at better than 50%.