I'm afraid that you have been taken in by a new age cult. Sri Dattaswami teaches nothing but a sort of New Agey spiritualism that seeks to unite all world religions under one umbrella. The concept that "god" is the same character in all the major religions is not new, and it is also not accurate.
To say this, shows a lack of knowledge about the history of the various world religions, the myths they arose from, and the cultures they developed in. Also, his website is very poorly designed and badly written.
In any case, I hope you don't give this person any of your money.