Please capitalize where necessary: how you send a proposal, invoice or estimate speaks volumes about you and your company.
A: How you send a proposal, invoice or estimate speaks volumes about you and your company.

Please capitalize where necessary: latest visit 22 february 2008 00:55
A: Latest visit 22 February 2008 00:55

Please capitalize where necessary: greentech currently has approximately 900 mw under development.
A: Greentech currently has approximately 900 MW under development.

Please capitalize where necessary: list of all star players on the team is found at "players", "stars".
A:
List of all star players on the team is found at "Players", "Stars".