hi,
bastos4321 is right. you have to install HSP1CE (linux version) and set the all necessary environment variables. i think there are some posts here where this procedure is described.
general there are a direct simulation approach (if you use s/pect/re) and an socket simulation approach (for all other simulators). so you have to set up ic5 in that way, that it uses HSP1CE instead of s/pect/re. i didn't try this before, but i have read it in the document anasimhelp.pdf (ic5_install_dir/doc/anasimhelp/).
Greetings,
hqqh