"Header menu" and "Footer menu" not showing on Blocks page for subtheme

I've subthemed Corolla in order to make a couple of CSS changes. I see the "Header menu" and "Footer menu" regions for Corolla (and have enabled primary links successfully in the "Header menu" region). But the regions are not carrying over to my subtheme.

I'll note that everything was working fine for me in 6.x-1.17.

mycorolla.info:

name = Mycorolla
description = Corolla modifications
base theme = corolla
core = 6.x
engine = phptemplate
stylesheets[all][] = mycorolla.css

mycorolla.css:

h1,
h2,
h3,
#site-name a,
#site-slogan,
.block h2,
#forum td.container .name a,
tr.region-title td,
table#permissions td.module {
  font-family: "Arial Black", sans-serif; */
}

#branding-wrapper {
  float: left;
  padding: 15px 0 18px 25px; /* LTR */
}

Also, if I can squeeze in a question, I'm having a little trouble figuring out where/what to change so that links are not underlined. Any hints?

Thanks!