I had this pr5oblem when I tried to update the content. Same "Can't find Poser.exe" - even if I tried copying it into the desired spot. It did put my runtime somewhere odd.. even if I thought I'd told it to use the oldfashioned runtime-and-keep-out-of-my-shared-files-cr*p

Anyway, it looks like they made the installer actually install the updates as well, as some of the folders are called something with Version 1 or the like.

Oh well...

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.