Due to name changes, the confusion is quite bad.
The place that sextile is referring to is now called "Twinks" (formerly Tuarus).
It can be seen on my map for Indra Massage
Directions to Indra Massage « Shamelessmack in Thailand and around
The soi that Sextile refers to as "Soi Naras Thiwat. 1" was known as Soi Anuman Rajdhon, and is probably still known as that. I still see road signs with that name.