easy. Set up the profile lines as i explained in previous post. then you draw another line segment snapped to the end of one of the profile lines. Then make mulptile copies of this new line segment using "Array" along curve. this should give you any set # of copies along the line. Use the trim command to divide the profile line into pieces. then select all the profile segments and join together again. repeat process to create the second sweep profile. Now you can use "Sweep" as explained earlier and the resulting output will be a polysurface. Highlight select the edges on the polysurface and Copy/Paste to extract all of your tweeners...

jonah