Dreamweaver is a little odd in its handling of ASP. I far prefer other programs for ASP sites, but I'm guessing you really don't want to hear that.
To begin with I'd strongly advise that you install and configure Windows IIS or Apache on the PC you are working on and use it as your testing server. This saves messing around with constant uploads every time you want to check whether or not your latest page(s) work or not as the case may be. Constant uploading, even on broadband, becomes irritating after a while and if you are fairly new to ASP believe me, you will be uploading more times than you can shake a stick at for testing.
This is the whole point to a testing server on your local system and any half serious web developer has one. I use IIS on this notebook: it comes with Windows and installs with preconfigured support for ASP and built in FrontPage Server Extensions. You can easily add PHP support using the CGI installer of PHP, or if you feel adventurous you can manually set up the full version of PHP for interaction with MySQL.
Incidentally, IIS also has a series of simple helpfiles built in which cover introductory dynamic site design using ASP.
Now, since a fully blown ASP tutorial is way beyond the scope of this forum, I'd like to suggest several resources to you.
Glasshaus click here publish an excellent book on ASP development with Dreamweaver.
Title: Dreamweaver MX: Advanced ASP Web Development
Full details click here
Macromedia have excellent user forums as well as several dynamic site tutorials for Dreamweaver: click here to begin with.
An excellent series of tutorials is at The Code Project site: click here
ASP form handling in Dreamweaver is detailed click here along with more Dreamweaver tutorials than you could hope to wade through. In fact, this particular site is worth its vitual weight in gold.
Without knowing what your project is it is impossible to go beyond generalisations. I am happy to respond to specific questions, but to answer them properly requires all kinds of details you may not be happy in supplying.
Try the above links and see where you get.
Post again with any particular queries but once again I strongly urge you to install a local testing server on your computer.