About the only thing you can likely do at this point is hack the zimbra schema file to include the DD attributes, but that's going to be ugly and painful. You'd need to then re-run the 6.0.0 upgrade after carefully fixing your .install_history file so that it thinks the only step so far has been having 6.0.0 installed and no upgrade steps taken.
Originally Posted by alvaroarb
Unfortunately, we've never had any response back from the author of this extension, so there has been no progress on an update step for 5.0.x to 6.0.x for folks running it.
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