Source help please?

Okay so I've been collecting addresses, offsets, and pointers for a while now. I've come accross several that intrigue me, most being the D3D stuff. I was wondering, how do I make sources for strings with this? I've been doing C++ for about a month and just now am having to declare strings. Some enlightenment?

#define ADR_D3D_USERNAME 0x00B97F24
#define ADR_D3D_USERIP 0x00B97C34
#define ADR_D3D_OWN_ID 0x00B5D170
#define ADR_D3D_OWN_PW 0x00B5D370
#define ADR_D3D_OWN_NAME 0x00B5D3B0
#define ADR_D3D_OWN_CLAN 0x00B5E800

I want to make an impostor username, so can someone here show me how. (NOTE* I did not find these addresses! - I don't know who did, so I can't give credit. If you know who truely found these I will give credit.)

YOu have to use D3D to use this, else it wont work, Just simply add / Codde the source into ASM part