I don't know for sure, but we have to start talking about what we do know if we're going to make this software work.
I've done something similar in other contexts- this involves collapsing a menu in the short permalink page, in a module called by a footer:
CODE
<mt:IfArchiveType type="individual">
<$MTInclude module="Spotlight closed"$>
<mt:else>
<$MTInclude module="Spotlight"$>
</mt:IfArchiveType>
There is a tag called
IfCategory
Returns true if the current entry belongs to the designated category.
Attributes
* name
* label
Example
CODE
<mt:IfCategory label="Foo">
<!-- do something -->
<mt:else>
<!-- do something else -->
</mt:IfCategory>
You should be able to add your links in that "do something" place and leave the "else" part blank.
Hope this helps.
Really useful:
Movable Type Template Tag Reference