Just to tell you that the bridge from mweya to Ishasha (QENP) is broken at that time. It means that you may have to go to rukungiri and from there take a very road to ishasha. Count 3 hours from rukungiri.
By the way, here's a link where you can see my last pictures taken at Lake Mburo and Ishasha (from 1st to 9th december 2009)