The files you need to unpack for LispWorks (64-bit) on Solaris are lw61-sparc64.tar and lwdoc61-sparc64.tar .
lw61-sparc64.tar
lwdoc61-sparc64.tar
The LispWorks image is
./lispworks-6-1-0-sparc64-solaris
LispWorks Release Notes and Installation Guide - 23 Dec 2011