1. Suspect that Windows may be giving you are poor looking display in Pro’s Source window. Open a DV clip in Windows Media Player. Choose Tools>Options>Performance>Advanced…make sure Digital Video is set to Large.
Also use a TV as a preview device while editing in Pro (use your cam as a pass-thru).
2. Nothing is wrong with the field order. PC monitors cannot display fields correctly…again, use a TV for previewing.