Just had some time to test the newly available php5 on my test/development server (on UH). None of the osc shops prior to rc1 works due to i guess register_globals have been turned off on php5. There are different ways/syntax to set it on per site but not sure which one is the right one that can used on UH server or if this is allowed on UH server at all.
Before spending time on testing each of the methods, think better do a post here and hope UH or someone who has done it successfully could offer an answer

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The so called register_globals patch is not an option for me.