Oh well, it's all very confusing. The ACT Explore site says that it will not be available after June, 2014. But it looks like there might not be test dates between now and June anyways...
So we will just wait for the Aspire to come out.
No we are not near Iowa. We'd happy to take the test at a center near us. What confused me is this:
http://www.act.org/path/parent/tests/explore.html where it states "How do we sign up?
EXPLORE is ordered and administered by schools or school districts. Check with the guidance office at your school to see if EXPLORE is offered."