Why I cannot open an application that a friend had give to me?

[Bong.Da.City]

You know i am making a simple clock application...( I cannot attach files [ Error Invalid type of file ] so i give you links from rapidshare ) .. Take a look from here..

But i had tell to a friend to add some funtcionalities.. SO he did it and he sent me the project ( Link: Here ).. But it doesn't work... And he says that he tested on 2 computers and it works.. Why all that?

P.s Please download the projects and then answer me... Otherwise you will not understand the problem...

Second P.s Minimize the application and it will go to the tray.. There are the options...