VPN site to site problem

I have 5 PIX 501 firewalls, i named it as NP, FW, HC, TS and CT. What I want is, connect 4 of them to NP through site to site VPN. I was using PDM's VPN wizard to configure the VPN connection for all of them. There is no problem with TS and CT, but FW and HC don't know why they cannot establish VPN connection. Below is the result of "sh crypto ipsec sa"

interface: outside

Crypto map tag: outside_map, local addr. 210.176.183.229

local ident (addr/mask/prot/port): (192.168.45.0/255.255.255.0/0/0)

remote ident (addr/mask/prot/port): (192.168.42.0/255.255.255.0/0/0)

current_peer: 210.176.182.130:0

PERMIT, flags={origin_is_acl,}
#pkts encaps: 0, #pkts encrypt: 0, #pkts digest 0
#pkts decaps: 0, #pkts decrypt: 0, #pkts verify 0
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0, #pkts decompress failed: 0
#send errors 0, #recv errors 0
local crypto endpt.: 210.176.183.229, remote crypto endpt.: 210.176.182.130
path mtu 1500, ipsec overhead 0, media mtu 1500
current outbound spi: 0
inbound esp sas:
inbound ah sas:
inbound pcp sas:
outbound esp sas:
outbound ah sas:
outbound pcp sas


As seen from the result, there is no interesting traffic carries between firewalls. Anyone know what is the problem? btw, for NP , CT and TS are using version 6.3(3), FW and HC are using 6.3(4). But i have checked with Cisco, they said it cannot be version problem. Please help me!!!! Thank you.

jeffreycyf