vc++6 works fine with the sdk, i had no problems at all. Your paths are set wrong.
To start with i recommend using the summer 2004 dx9 sdk with 6 simply because thats what i use so i can say for sure it works.
the dx include path should be the very first in the list. the sdk include path should be second. Then your other stuff. Thats for include files.
for Library files the very first thing included should be dx9 extras\d3dx visual studio 6\ path. Looking at your screenshots again I notice you dont even -have- the dx9 extras, im pretty sure thats clearly stated in the faq as a requirment

after the extras is the normal dx9, then the darksdk.
That path setup will allow you to use vc6 perfectly fine with dgsdk. Buying a brand new dev suite couldnt of been cheap and maybe overkill

I certainly wish i could afford to go oh i cant be bothered to fix this i will just buy the latest compiler from microsoft

But if you like your new IDE etc etc then money well spent and I hope you enjoy it.
[07:16:59-pm] « Sephnroth » you were dreaming about lee...
[07:17:13-pm] « Mouse » stfu

[07:17:22-pm] « Mouse » he was hanging himself lol