2.1.3 for XP?

Audacity 1.2.6: https://code.google.com/archive/p/audacity/downloads?page=6

The links on the website need to be updated for the other versions, but in the mean time:
2.1.3 is available here: http://www.oldfoss.com/Audacity.html
2.0.6 is available here: https://sourceforge.net/projects/audacity/files/audacity/2.0.6/