As you may have noticed the SPEX has been closed since the posting of this announcement. This was due to plans of integrating the SPEX with a new module for SMF as part of Simopsis 3.0. Due to hosting issues with smfnew, we haven't been able to secure the hosting required for this. I planned on bringing the current SPEX back up on a temporary basis, however further issues with the SPEX host means we can't. (Long story short, they think I am a spam bot and have suspended all site hosted with my account unless I buy an upgrade. That's not going to happen.)
So, unfortunately, until further notice the SPEX is still offline. We hope it will be only a few more weeks, but it could also be a few months. Time will tell.
Thanks for your ongoing understanding.
-sl