I would double check the match on the encryption packages. I don't really know Cisco, but it looks like you are using md5 for phase 1 on the Cisco side and 3des on the Juniper.
Also we don't see what the parameters are in the custom phase 2 crypto package "cisco" on the Juniper. Make sure they match those on the Cisco side. It looks like you have pfs enabled there so be sure that is in the Juniper package.
Usually troubleshooting vpn connects is easier from the error logs and the status of the tunnel. Check out kb9221 which walks through the potential issues and what to look for on the Juniper side.
http://kb.juniper.net/kb/documents/public/resolution_path/J_visio_kb9221.htm