You can use a command prompt this way:

httrack "somewebsite.com/page1.htm" "somewebsite.com/page2.htm" -O d:\10 -r1


d:\10 is catalog where httrack put files.
rN is depth of search, and here depth=1.

This way httrack will save 2 pages in d:\10. And if this 2 pages links to each
other, so httrack consider this.

You can also use program interface. So you have to point your URLs in the
field "URL" and then in "parameters" you must to set depth to 1.