PIX 501 STATIC NAT

I have a PIX firewall with an inside subnet of 10.145.35.0 and an outside IP of 10.20.157.102 . When I connect to the outside interface with a Cisco VPN clinet I get an IP of 192.168.66.250 . I can then ping 10.145.35.2 from the client. I need to setup a static NAT so if I ping any IP between 192.168.66.1 and 192.168.66.15 I get a response from the same IP on the 10.145.35.0 net (192.168.66.2 to 10.145.35.2)

Running Config:
Building configuration...
: Saved
:
PIX Version 6.3(4)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pixfirewall
domain-name ciscopix.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list outside_access_in deny icmp any any
access-list inside_outbound_nat0_acl permit ip any 192.168.66.248 255.255.255.248
access-list outside_cryptomap_dyn_20 permit ip any 192.168.66.248 255.255.255.248
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside dhcp setroute
ip address inside 10.145.35.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool backsPOOL 192.168.66.250-192.168.66.255
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
access-group outside_access_in in interface outside
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
http server enable
http 10.145.35.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup backs address-pool backsPOOL
vpngroup backs idle-time 1800
vpngroup backs password ********
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 60
ssh timeout 5
console timeout 0
dhcpd address 10.145.35.2-10.145.35.129 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:18b70b34724b4d809da545c4d58e8f36
: end
[OK]