We have our own customised version of OSCMax on our Linux hosting server which is available for download to our hosting customers.
It needs a little tweaking and an update with the addition of Google checkout available from the OSCommerce contributions.
Also at the moment the order report emails are not being sent to us after paypal payment is made although the other order reports are arriving OK. I believe this is a reguar OSCMax bugfix within the [url removed, login to view] file
I'm looking to spend $30 approx on this quick fix but I have other jobs in the pipeline and need a good reliable programmer for ongoing work on regular basis for us and our clients.