I was having a problem with decursive dispels interrupting my pally healing in a 5 man. So i removed the addon and modified the decurse party function. Check this out and feel free to provide feedback. It isn't finished yet and just works for mages and pallys but you should get the idea:

function DecurseParty()

if MyMana()<220 then return end

if ImBusy() then return end

local y,x

for x=1,40 do

local name,count,debuffType=UnitDebuff("player",x)

if debuffType=="Curse" then

if SpellExists("Remove Lesser Curse") then TargetUnit(PartyID(UnitName("player"))) cast("Remove Lesser Curse") end

return

end

if debuffType=="Magic" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("player"))) cast("Cleanse") end

return

end

if debuffType=="Disease" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("player"))) cast("Cleanse") end

return

end

if debuffType=="Poison" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("player"))) cast("Cleanse") end

return

end

end

for y=1,4 do

for x=1,16 do

local name,count,debuffType=UnitDebuff("party"..y,x)

if debuffType=="Curse" then

if SpellExists("Remove Lesser Curse") then TargetUnit(PartyID(UnitName("party"..y))) cast("Remove Lesser Curse") end

return

end

if debuffType=="Magic" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("party"..y))) cast("Cleanse") end

return

end

if debuffType=="Disease" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("party"..y))) cast("Cleanse") end

return

end

if debuffType=="Poison" then

if SpellExists("Cleanse") then TargetUnit(PartyID(UnitName("party"..y))) cast("Cleanse") end

return

end

end

end

TargetUnit("playertarget")

end