Several months ago there was some discussion about the kit maker's status. He had some personal health issues, and there were some folks here who knew him personally. The word back then was that his kit production was slowly resuming.
In the meantime, there are some online vendors who sell the kits. I personally got mine through All Hobbies. Good service, good pricing.
You can do a Google search for "The Launch Pad" and put in some qualifiers (like the particular rocket kit you are looking for, or even just "rocket kit") and it'll find you some vendors.