A HEARTBREAKING picture of WHITNEY HOUSTON in the "National Enquirer".  Girl really DOES look like a CRACK HO.  And the "Enquirer" says things are as bad as they look.  Supposedly, Whitney's voice is SHOT due to years of coke use. . . and she and husband BOBBY BROWN are running out of money.  But with Whitney unable to sing, their financial situation isn't likely to change for the better any time soon.  (--Here's the picture, which was taken at an Atlanta gas station at 4:00 A.M. one morning last month.  Check out Whitney's pajama bottoms, crazy wig and. . . $50,000 FUR COAT. . .)