Start>run Gpedit.msc and OK.
Go to User configuration>Administrative tools> Start menu .
Enable/disable waht you want from Start menu.
Or, custom hide, by manually hiding what you want :
Go to C:\Documents and Settings\User_name\Start menu
Select your shortcuts, right click ,and chech Hide, and OK.
They will dissapear from folder, and will DISSAPEAR FROM START MENU also...
If you want them back, open any folder, go to Tools menu ,go to Folder options, and check the Show hidden files and folders, go to the Start menu folder again , select what is hidden , right click>Properties, and uncheck Hide , click OK.
Go back to Folder options and check Do not shaw hidden files and folders...