you can open sample, try 8051 sample, then right click uC, select properties,u will see program file text box(this is place u can put hex file of your program).
so start make your own uC system, then put hex file.
hi,
you must open component propety by double clicking on it,
then click on the icon that have a picture like Folder's Icon(in side od Program File)
then select your hex file...
Have luck...