FI-MM and FI- SD Queries... Please Help

Hi Gurus, Please help me with the following queries-

1. How movement type and valuation class helps in determining G/L A/C?

2. Where do I configure GL A/C as per movement type and valuation class?

3. Where I can see G/L postings of individual material after PGI and invoice?

4. How can I see individual customer receivable a/c?

5. How can I see G/L postings of sales revenue, discounts and freight?

Thanks in Advance