Here's where I started: //www.curezone.org/cleanse/ I just kind of went down the list. The bowel cleansing and Liver Flush will probably give you the biggest bang for the buck. That is they're cheap and will give you fast results.
Start reading the cleansing forums and just do what seems like the most important for your particular health issues. I had a lot of mercury fillings and my health improved by getting the Total Dental Revision. I just wrote a post describing how I cured my Arthritis overnight in the Dental Problems forum. It was pretty dramatic. Mostly I would recommend reading. Start a list of recommended books and see how many you can get from the library. Some you will want to buy. I highly recommend anything by Hulda Clark or Andreas Moritz .
Good luck! I can honestly say I've enjoyed my two years of cleansing and getting gradually healthier. It's all about changing your lifestyle little by little until you have abundant health. Some of the things were easy like liver flushing. Some things I've fought, like changing my schedule to go to bed early and getting up early and the whole exercise thing.
It doesnt' matter where you are on the ladder, it just matters which direction you're heading.