Salesforce Lead management is distinct from Opportunity management although they are interrelated. I would like to get some real world data about Lead tracking with this survey question: You can also share your Lead Status values as a comment.
When you use DataLoader and include a Date/Time field, it comes out in a format that is not easily usable with Excel or Access. For example: 2010-11-29T21:48:00.000Z In particular, it has the “T” character separating the date and time portions. [...]
Many new Salesforce.com customers initially have difficultly understanding the role of the account record. Rather than immediately providing a definition, let us first take a process perspective. Then we will attempt a more traditional definition by taking a data perspective. [...]