Photoshop CS5

Does anyone have the WORKING Dll's needed to use photoshop without using DEdit? I put all the plug in's and dll's into the correct folder but it still says (wrong document type) when i try to open a DTX file in PS. DEdit is like the pain in the ass middle man noone likes ...That plus my computer keeps saying im missing the Dll's to run Dedit im currently downloading a New windows 7 because this one obviously sucks ass (knock off fails)

Anyways.. Help cause i want to texture some guns =)