Problem between Lightspark and online newspaper reading with Milibris

Hello,

Some sites offer a paying subscription to read newspaper online, protected by DRM (so no pdf download possible), for example french sport daily journal L'Equipe : http://www.lequipe.fr

Online reading is provided by Milibris : http://milibris.com/

Here is a free demo : http://www.lequipe.fr/Quotidien/millibris0.php

It does not work, either with Gnash 0.8.9 nor with Lightspark 0.4.6.1 on Ubuntu Natty 64 beta2 and Firefox 4.

I get a black screen with error message :

Lightspark encountered a yet unsupported flash file
SWF http://fr1.milibris.com/lequipe2424/le-quotidien/2009-05-06/reader/milibris.swf
Cause: argslen >= 1 && args[0]->getObjectType() == T_STRING /build/buildd/lightspark-0.4.6.1/scripting/flashexternal.cpp:99

Please see joined printscreen, hope it can help.