Hi,
older versions of Scalix are actually more delicate when it comes to handling MIME that is "on the edge" with regards to standards, so actually 10.x will probably be able to successfully convert and display more messages than any previous versions.
The inavailability of Scalix 10.0.2 patch as a CE version is more a packaging and release management issue than anything; the fixes contained therein where very customer specific and were, unlike 10.0.1, not thought to have wide appeal.
This doesn't seem to be fully true for the specific issue at hand here. If this is causing problems for a growing number of people, we might have to re-evaluate our policy. Unfortunately, we've our hands full to get Scalix 11 out of the door!
Cheers,
Florian.