There is no any noticeable noise on the record. I am certain with CoolEdit you will do this track sound worse rather than better. There are another class of programs for audio restoration (like Izotope RX
http://www.izotope.com/products/audio/rx/ ) but they cost a fortune and even with such tools you have to be a master to improve this particular record. Seek for a professional audio recording studio services. Maybe they could help you.