SBS 2003 VPN Connection though Cisco PIX 501 Firewall

Hello,

I recently changed a linksys router out for a Cisco PIX 501 - I am very new to Cisco products and have configured as below.  My issue is VPN clients cannot connect to our SBS 2003 server via VPN from the outside.

Please let me know what you think, it's rather urgent.

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
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
name x.x.x.x outside
access-list outside_access_in permit icmp any any 
access-list outside_access_in permit tcp any interface outside eq smtp 
access-list outside_access_in permit tcp any interface outside eq www 
access-list outside_access_in permit tcp any interface outside eq pop3 
access-list outside_access_in permit tcp any interface outside eq https 
access-list outside_access_in permit tcp any interface outside eq 444 
access-list outside_access_in permit tcp any interface outside eq 500 
access-list outside_access_in permit tcp any interface outside eq 1701 
access-list outside_access_in permit tcp any interface outside eq pptp 
access-list outside_access_in permit tcp any interface outside eq 3389 
access-list outside_access_in permit tcp any interface outside eq 4125 
access-list outside_access_in permit tcp any interface outside eq 4500 
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside x.x.x.x 255.255.255.192
ip address inside 192.168.0.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.0.50 255.255.255.255 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp interface smtp 192.168.0.50 smtp netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface www 192.168.0.50 www netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface pop3 192.168.0.50 pop3 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface https 192.168.0.50 https netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 444 192.168.0.50 444 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 500 192.168.0.50 500 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 1701 192.168.0.50 1701 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface pptp 192.168.0.50 pptp netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 3389 192.168.0.50 3389 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 4125 192.168.0.50 4125 netmask 255.255.255.255 0 0 
static (inside,outside) tcp interface 4500 192.168.0.50 4500 netmask 255.255.255.255 0 0 
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 x.x.x.x
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 sip-disconnect 0:02:00 sip-invite 0:03:00
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 192.168.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 outside
ssh timeout 5
console timeout 0
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
terminal width 80
: end

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