Check these Yahoo groups. They usually have many good
links to reviews, sources and files for their respective radio:

http://groups.yahoo.com/group/SONYICFSW77
http://groups.yahoo.com/group/sw55

Other Sonys

http://groups.yahoo.com/group/icf2010
http://groups.yahoo.com/group/SW07
http://groups.yahoo.com/group/SonyICF-sw100
http://groups.yahoo.com/group/7600GR