When you are dealing with issues of self-disclosure on a sensitive topic such as this, it is important to bring together participants who will have a high degree of similarity (homogeneity) with regard to the topic. 

Here is an example of a focus group study on truck drivers in India:

Hi Ashish!

I hope the attached links provide you some useful information. I feel there will be a lot of cultural barriers in conducting such FGD, which should be managed and dealt with beforehand.

https://www.guttmacher.org/pubs/2005/03/01/or16.pdf

www.rowan.edu/colleges/chss/facultystaff/focusgrouptoolkit.pdf

Article The use of focus group methodology - With selected examples ...

I don't know if this helps but you can look at my presentation on conducting focus groups - it also includes a video on  how to conduct focus groups effectively and things to think about when using focus groups in research.  

With regards to software I would recommend you refer to Computer Assisted Qualitative Data Analysis Software (CAQDAS) - see link below for available packages that may suit.

http://www.slideshare.net/ArunVerma12/using-focus-groups-47306805?qid=3e0bc289-4ebc-4d7a-bb98-18e88019788f&v=default&b=&from_search=3

http://www.surrey.ac.uk/sociology/research/researchcentres/caqdas/support/choosing/

Arun Verma -  Thankyou vey much for sharing your presentation