Alrighty SirP this post should have any remaining questions, that way hopefully you don't have to go hunting through the last couple pages of the thread.
1) For the purposes of the Yuan-Ti Cultist Prestige Class, would it be okay for the Yuan-Ti's Monster Class' SLAs to count as "Psionic" ?
For example
Psionic Focus (Su): At 4th level, a yuan-ti cultist’s psionic ability becomes more focused. He adds +2 to the DC for all saving throws against his innate psionic powers.
His innate psionic powers being the SLAs.
The Yuan-Ti Cultist is on Page 98 of Savage Species.
2) Also, can the Yuan-Ti Racial Levels also count as cleric levels for the purposes of the abilities/powers granted by the Yuan-Ti Cultist class?
For exmaple
(snippet) Sticks to Snakes (Sp): At 2nd level, a yuan-ti cultist
gains the ability to transform inert pieces of wood, such as arrows, torches,
or staffs, into snakes. Once per day, he can transform 1d4 sticks +
1 per class level (including cleric levels) within medium range (100 feet + 10 feet/level).
3) Looking around I found a listing of Domains for Merrshaulk in LG_Deities(from Wizards) which can be downloaded from this wiki page
http://en.wikipedia.org/wiki/MerrshaulkChaos, Destruction, Domination* (CD), Evil, Mind* (CD), Plant, Tyranny* (CW)
For going into Cleric(when the time comes at level 8), at this point I'm looking at Evil and Dmonination as my two Domains, would that be okay?
4) As a dedicated follower of Merrshaulk who is attempting to corrupt and overthrow the Dark God/Imperium through the "aid" of the Dark God's power, planning on/thinking Chaotic Evil(smart, & party friendly of course). Is that okay?
Alrighty that should do it, think that's all of the still relevant questions I have, hopefully this helps make it easier, and less time consuming to answer having them in one place/post.