If you have no experience with knitting machines I suggest you look for people who have experience. I had a friend who knew how to use knitting machines. My friend Julia also had already found groups of people, who also like to machine knit. I have learned so much by having more experienced people help me.
These experienced people can be found at machine knitting guilds or groups in your area. It's fun to knit with other people and their experience can be a great help. Some local knitting stores have lessons for knitting machines. Don't count them out. Call and ask. There are some Yahoo Groups you can subscribe too that have very experienced and nice people to talk to and ask questions of. Subscribe to a few you'll find ones that you like the best.
The internet has also been a great source of info and learning. If you'll check out my links I'm putting the ones I enjoy and find useful on this blog.
If you have a machine and it hasn't been used in a while you'll want to clean it and probably replace the sponge bar. I'll be posting about refurbishing sponge bars soon. I took pictures of the process with the last sponge bar I refurbished. I've done 2 and both work great. So, the method works well.
Search You Tube there is amazingly a wealth of machine knitting videos on there. Here's the first one I looked up when I was in a bind.