Right now, Ethereum is probably your most profitable coin with that card.

 Your cgminer issue might be bad configuration, or wrong driver(s) - I don't remember if cgminer supports OpenCL offhand (forget AMD Stream, AMD themselves dropped all Stream support almost 3 years back for ANY, and almost 4 for XP).

 You might need a different cgminer version for that matter, some of them were fairly specialised....