Can you provide debug information, first clear cry ipsec sa and also cry isakmp sa, then post the output of debug cry ipsec and debug cry isakmp:
Explanation of clear and debug commands:
clear crypto ipsec sa Resets the IPSec associations after failed attempts to negotiate a VPN tunnel.
clear crypto isakmp sa Resets the ISAKMP security associations after failed attempts to negotiate a VPN tunnel.
debug crypto ipsec Shows if a client is negotiating the IPSec portion of the VPN connection.
debug crypto isakmp Shows if the peers are negotiating the ISAKMP portion of the VPN connection.
I notice from your posted configuration that you have on pix 1 peer address 777.777.777.58 and on pix 2 peer address 777.777.777.58, is this a typo?
Also for reference take a look at this URL:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080094761.shtml
Jay