@ stickman393 - SONAR_Platinum_Setup_23.4.0.38(Rebuild_1).exe is the latest and greatest. You are good to go.
@ scook - hover your mouse over the SONAR Platinum 23.4.0.38 link. It should show the actual filename ( SONAR_Platinum_Setup_23.4.0.38(Rebuild_1).exe ) buried in the URL path, which is the latest.
@ pjkemp - assuming you are using Command Center, you should go to Command Center > Setting > and click the Check button. That should then show .04 as latest available. If you looking at you account web page like scook and stickman393 and are eligible for updates, but not seeing it you may need to contact support directly here:
http://www.cakewalk.com/Support#Contact Jim