Hi,
fyi, in the latest source code I implemented an option disable ZedGraph in the commerce reports, if disabled it will use the new chart controls from the ajaxcontroltoolkit which I assume will work in Azure though I have not tested yet. This change is in the source code repository now so it will be in the next release of mojoPortal. You can add this in your user.config:
<add key="DisableZedGraph" value="true"/>
After the next release it will work.
Hope that helps,
Joe