.net problem urgent

Hi,
I posted it in Asp.net,but found no answer.Its urgent so plz exccuse me for posting it here.
Can anybody help me?
My problems are...
1. I am developing a web application using asp.net,but when I wanted to distribute some works to my friend then I am facing great problems.
Firstly he is developing some pages in a different computer.When we are trying to merge the web forms its showing an error.
Plz suggest a way to share work while using asp.net

2. when I am trying to run the web application in a different computer its showing error.I have tried the install package also,but failed.
What i am doing is -I am creating a virtual directory and linking the folder.
But its not working...Plz help

3.IN one of my client's computer when I tried to install .net and tried to run asp.net its showing error.
IIS and Sp4 also already installed ....

These things are making me crazy....Plz help me

With number 1, this should help:
http://msdn.microsoft.com/library/de...lStudioNET.asp

I would suggest being more descriptive. Just saying that it is showing an error does not help. May be thats the reason you didn't get an answer in ASP.NET forum.

If you can post the exact error messages and what exactly are you trying to do it would be far more easy to help.