Please follow the forum guidelines. You added your question onto an existing thread, and to be honest it had nothing to do with that thread. So I split it into a new thread.
There is a very good manual in the installation - the SKILL Language User Guide which is a good place to get yout started. You can access this in cdnshelp or by looking at <ICinstDir>/doc/sklanguser/sklanguser.pdf . In addition, Cadence runs training courses on SKILL - both in person and via the Internet Learning Series. Look at the Support & Training->Training Options link at the top of this page.