Hi Stephen,
You have 3.0 working now. So if you want to stay at 3.0, you don't have to do anything.
I really recommend upgrading however. There are many, many new features in 3.6 and a great many others available in 3.7 coming up. And your taxonomic lists are very out of date. And you cannot use the latest ones because they won't work with 3.0.
Let me know if I can assist further,
Jeff |