1. Download Eclipse Photon Packages from this link (http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/photonr). Select Windows 64-bit
2. Download Tomcat 7 from this link https://tomcat.apache.org/download-70.cgi . Select 64-bit Windows zip (pgp, sha1, sha512)
3. Video Link for setting up your first ZK Program. Here is the Link
Notes :
In the catalog file enter http://mavensync.zkoss.org/maven2/
and description enter as “ZK Maven Archetype” and click verify