Not a lot of help, so I'll apologize up front.  But I read your note and thought it deserved some response from me no matter how inadequate.  I'm sure others will come along soon and give tons of excellent advice.



My only help is with question #3, how to explain leaving that situation.  And I'm sure others will have other advice, but here's mine:  something to the effect that you are looking for professional growth and felt that the position was not giving you the advantages that this position would give you.  Looking for professional growth seems to be a positive reason for leaving a position and since no one interviewing you will be aware of the full story behind this position I wouldn't think it could hurt to use it - and it's truthful.  You can also say something about the fact that you've been "finding your way, your niche" and now know the direction that you want to head and are looking for a good, strong position with a company that offers professional growth.



That's my $.02-worth... Good luck.