The addon extends your standard mouse over window with additional information.
You can download it in Tesqs addon pack, but unfortunately it's not working in the 1.4.8 client.
It uses a function, that was removed in 1.4.0 and so it stops running.
Here is the fix:
Delete line 409 local iconId = GetDefaultMapPointIcon( mapPinType ) in %wardirectory%\Interface\AddOns\Moth\Moth.lua.

After doing this it should look like this:
Spoiler:
You can customize the "mouse over target window" in %wardirectory%\Interface\AddOns\Moth\MothProfiles.lua:
Spoiler:
Spoiler:
You can customize the colors (RGB values) of the text in the in %wardirectory%\Interface\AddOns\Moth\GuidanceCounselor.lua:
Spoiler:
When you change something in the addon core files and want it to be loaded into the game "on the fly", just reload your UI (/rel in the chatwindow).
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Uploaded the fixed addon + alternative colored version: