I will post this to help the other players in the game, but damn it pisses me off that I am the one to do it instead of a developer who prefers to hide than hear the complaining this update is going to cause.
To get to your target line, right click the icon you use to enter the game, click on properties, the top line of the window that opens should be your target line. Remove -r800x600 or any other numbers it may have there, I know some use different sizes. I never had that other part in my target, the app??? thing so not sure what it is for. My target line now is:
"C:\Program Files\Maxis\The Sims Online\TSOPatch\TSO.exe"
This one is for the client in EA Land only, you only need this IF you run more than one account, always use the first to make sure you are updated to newest version before you use the client:
"C:\Program Files\Maxis\The Sims Online\TSOClient\TSOClient.exe" "-CSCity:EA Land"
If you have the new ea land install, the first part will be different, but that's ok, you only need worry about the end part.
You should be able to get in game, and I hope all of you who hate this big friggin window as much as I do, tell the devs about it.