Problems using Devanagari-Qwerty keyboard in Mountain Lion

Question

I have  all the discussions about Devanagari-Qwerty and have looked at and used all the websites that give instructions. But most do not apply to a Mac using 10.8.3. Nor do I get any answers from the people at Apple-Care when I phone them. My current questions are the following:
1. What is the exact default font that is attached to the Devanagari-Qwerty keyboard in Mountain Lion? It is definitely NOT Devanagari Sangam MN, and it is NOT Devanagari MT. I cannot even use Devanagari MT in Mountain Lion on any of my programs, such as Microsoft Word or Adobe InDesign.
2. I have spent the last few hours trying to figure out how to type one of the Sanskrit vowels that transliterates as "kree" or "kreem: ऋ़ं According to all the instructions I have read, theoretically this should work by typing option+r, shift+f, shift+m. But this does not work In Microsoft Word or InDesign, it just types a halant after the "kr"
3. I cannot figure out how to turn on or use any advanced typography characters in any Sanskrit font with Mountain Lion. The instructions I have read do not apply to Mountain Lion.
I have been wasting many hours! Please help me!

Answer 1

Dear Tom,
Thank you so much for responding to my questions. I have more questions:
1. InDesign says it does support Indic scripts:
http://blogs.adobe.com/vikrant/2012/05/indesign-cs6-indic-support-and-preference s/
I have followed their instructions and have turned on that script in their program. Yet I still have problems.
2. What is the default font that is connected to the Devanagari Qwerty and Devanagari language keyboards on Mountain Lion? Or is it different for each program? MSW appears to default to "Sanskrit 2003." Text Edit appears to default to "Devanagari Sangam MN." InDesign appears to default to "Adobe Devanagari." Yet I cannot actually choose any of these fonts and use them in MSW or InDesign. In other words, on the font list, they do not display any Sanskrit characters. Instead, they become English letters when I select them from the list to type with. But if I use  Devanagari Qwerty or Devanagari language preferences to type with, then they do show up as Sanskrit characters. I do have other Sanskirt fonts that do appear on the font list and that display properly. But none of these other fonts default when I use Devanagari Qwerty or Devanagari. This is very confusing.
3. I have never seen the gear wheel on any program except Text Edit. I wish I could find it, because I would like to turn on "additional conjuncts." I can go to Format > Fonts > Show Fonts with Microsoft Word, but I see no gear wheel. With InDesign, which supposedly does support Indic fonts, I don't know where to go in order to find the gear wheel. And I don't see any gear wheel on the Font Book program.
4. My publisher requires that I use Microsoft Word to deliver my manuscripts. They do not accept any other programs. I am trying to type Sanskrit letters easier by using Devanagari Qwerty and/or Devanagari keyboard on my Mac. Any solution for Microsoft Word? Whatever solution I use has to also be compatible with InDesign, because my publisher copies and pastes everything into InDesign to design the final pages.
Thank you!