7 segment problem

Help me....

Hai friends...I have a problem in this project. the project use the 7 segment with common cathoda.
My question : how to convert this circuit with 7 segment common anoda??? because I was having trouble finding 7 segment in my place.

Attachment 7098

Help me please...thanks before for all..

Switch the npn transistors to pnp hooked to vcc instead of ground (the emitters to the led) then invert the logic states in your program.