record/register, in a while/for a while

[Saneta]

http://www.english-test.net/toeic/listening/discussing_the_benefits_of_being_self-employed.html

1.to record all my expenses=to register all my expenses?
2. I haven't seen you in awhile. = in a while? = in a moment? - but It doesn't suit me in this sentence: in a while,
shouldn't it be:
I haven't seen you for a while?

thanks

[Beeesneees]

1. to write down in detail on the appropriate forms, etc. all my expenses.
2. 'In a while' = 'for a while' here. Another example of choice in English. for a while - for some time.
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Cheers m' dears!