Great news, AmiSSL 4.6 was released with added support for Amithlon. It is one of the options when installing so make sure you select it.
IBrowse 2.5.3 was also released with a few coding tricks to make it faster.
I’m still working on updated guides, this is going much slower than I expected as I haven’t had a lot of free time this year. Fingers crossed I’ll get to dive in and wrap them up soon.