I am running Ubuntu 9.10 Server. I am using using Apache to listen on port 80 and when I run

sudo lsof -i tcp:8080

It shows something like

command pid user FD type Device Size/Off Node Name
mono 16761 Me 4u IPV4 52394 0t0 TCP LocalHost:http-alt (Listen)

If I browse to http://localhost:8080/default.aspx I am shown an aspx page that I wrote a while back as a test.

I want to use the server as a test for migrating some asp.net apps over to mono but I can't remember how to configure it and I don't even know where the default.aspx file that is being served to me is located.

How can I find where to put the aspx files I write?
and How can I further configure the app that is listening on port 8080?