basic question about customizing start menu.

ok i do know that if u right-click on start button and select all users you can customize your menu.

What i would like to know is ... why does dragging and dropping items from the start menu into others on the menu
only copy some things.

example: I install a game like wolfenstein..it adds its entry. But i like all games to be in the games folder.
so i drag the wolfenstein folder into the games folder.

but when i check..maybe only 2/5 things in wolfenstein folder will have been copied.


Also, if i click on properties/advanced/add.. (via task bar)
only some things in the start menu are shown?

I am logged in as administrator.

TIA

guess its not so basic afterall as no one knows the answer. lol