select a brush in one of the 2d views by leftclicking on it (it'll light up). you'll then be able to move it by holding shift+leftmouse and dragging. shift+rightmouse will rotate it on an axis depending on which 2d window you are in. to texture (an added or subtracted brush) leftclick on one of the faces of the brush in the 3d view, once it is highlighted (blue) press shift+b to select all of the surfaces of the brush, then select a texture from the textures menu on the left by clicking on it.
there is a list of key combos on http://unreal.epicgames.com/ in the levelediting section.
there are many tutorials @wolf's http://unreal.gamedesign.net
there is a list of key combos on http://unreal.epicgames.com/ in the levelediting section.
there are many tutorials @wolf's http://unreal.gamedesign.net