I picked up an old Kenmore (seems to be a theme), but am looking for some advice on getting started.
To get started with your Kenmore, you probably need a manual. If you are unable to find one online, there are several sewing forums that have quite knowledgeable and helpful members. Mention the kenmore model number and what you need -- manual, threading diagram, ....
The folks on the following UK forum seem especially knowledgeable and helpful.
The Sewing Forum
FYI in case you don't know. When searching a forum for information, a google search using the site tag is usually more productive than the site's search option. For example, the format of the google search of this site would be would be: