Here's the situation.  We have a very tight development schedule and the
application must be done using Visual Studio .Net.  It is a multi-tiered
database application   It has VB.Net DAL (Data Access Layer) and VB.Net BLL
(Business Logic Layer) with ASP.Net Web Forms as the front end.

The problem is, this is our first .Net project and we don't know how to code
VS.Net with multiple developers.

We are comfortable enough with the programming languages but can't figure
out how we can work on different parts of the application at the same time.

Lets take the ASP.Net application for an example of what I mean.  If I'm in
the middle of coding a Web Form and a coworker wants to edit another Web
Form for the same site, how should this be accomplished?   I don't
necessarily know he is working on another page.   When I attempt to run or
build the application won't it throw errors if he is in the middle of
something, and vice versa?

We're thinking that we're missing something.  It doesn't make sense for us
not to be able to code different parts of the application at the same time.
Any ideas?

Thanks,
Daniel