I have an existing Sketchup 8 install under Wine which died after the most recent upgrade (1.3.28).
I installed PlayOnLinux (4.0.12), then re-installed Sketchup 8. Sketchup 8 doesn't run and says it has 'encountered a serious problem'.
I have attempted to install Sketchup under Wine 1.3.19 (the machine's choice), and then again under Wine 1.3.3, the last version which worked. When I go to PlayOnLinux Configure Wine, it shows 1.3.28 (the version which crashed my last install). In the Wine Versions Manager, Installed Wine Versions is still blank.