[Phanx]

core.lua, after line 1166, add the 3 green lines:

		if unit == "player" then
			Castbar:ClearAllPoints()
			Castbar:SetPoint("BOTTOM", UIParent, "CENTER", 0, -100)
			Castbar:SetWidth(config.width)

			Castbar.SafeZone = Castbar:CreateTexture(nil, "BORDER")

core.lua, after line 1174 (line 1177 after the previous addition), add the 5 green lines:

		elseif (uconfig.width or 1) > 0.75 then
			if unit == "target" then
				Castbar:ClearAllPoints()
				Castbar:SetPoint("TOP", UIParent, "CENTER", 0, -112)
				Castbar:SetWidth(config.width)
			end

			Castbar.Text = ns.CreateFontString(Castbar, 16, "LEFT")

Not tested. If it doesn't work, post the actual error message you get from BugSack, or a screenshot if there is no error message but things are not in the right place.