Thank you for catching this mistake in the Guide to DHS Statistics. DHS staff had already identified it but the correction has not yet been posted. The corrected code is as follows:

Number of women (or men) age 15-49, or young women (or men) age 15-24, who used a condom the last time they had sexual intercourse with a person who was neither their spouse nor lived with them:
Women:

risk1 = (v527 in 100:251,300:311 & v767a in 2:6, 8, 96) (last partner) 
risk2 = (v527 in 100:251,300:311 & v767b in 2:6, 8, 96) (next-to-last partner) 
risk3 = (v527 in 100:251,300:311 & v767c in 2:6, 8, 96) (third-to-last partner)

((risk1 & v761 = 1) or 
(not risk1 & risk2 & v761b = 1) or 
(not risk1 & not risk2 & risk3 & v761c = 1)) 

When the Guide is next updated (soon, we expect), it will include this:

In earlier final reports, percentage of women or men who had intercourse in the past 12 months with a person who was neither their spouse nor lived with them and who used a condom as last sexual intercourse with such a partner, was based on using a condom with any such partner in the last 12 months rather than the most recent such partner. Previous calculation was as follows:

Women: ((risk1 & v761 = 1) or 
(risk2 & v761b = 1) or 
(risk3 & v761c = 1))

Please let us know whether this takes care of your concerns, or you still have questions. Thanks again.