Here's some pages I bookmarked in Firefox from when I setup my environment a couple of months ago.

http://wiki.maemo.org/Documentation/...-based_systems

http://wiki.maemo.org/Documentation/...own_the_SDK_UI

http://talk.maemo.org/showthread.php?t=68684&page=2

Qt "Build" will create files that are upload-able to extras.
This makes a source.changes, dsc and tar files for the autobuilder.

To create armel debs I move the files to scratchbox MyDocs directory and run in scratchbox armel targets...

This makes a armel.deb, and armel sources.
I install the armel.deb to my N900 to test.

If the package works OK, I upload the file created by Qt "build" to autobuilder.

Remember if using this method to change your compat file to 5 as 7 will not work in scratchbox.