[2005] i want to run separate web applications in different sub folders ?

dear all,
i have an application that will be duplicated for different users, each user should have his web application access his own data with his own built.

the problem now is how to publish them and start them from a web sub folder.
to be more clear, i have some web pages and a bin folder and some other resources files. When i publish them on the www root folder it works very fine.

but when i try to move the same pages and bin folder and other resources inside a sub folder on the same www folder. the asp page fails to start.

the reason i do so is because i intend to publish the same web applications but with different options, i need each one to be totally isolated in a sub folder and even has its own applications / session variables and events.

how can i do so and more over is it possible in the first place.

i welcome any responses , links or even total books to read.

thank you