PPTP passthrough on a PIX 506E to Windows SBS 2003 VPN Connector

I am running a PIX 506E version 6.3(5) on PDM 3.0(4) we are using windows SBS 2003 VPN connector to connect via PPTP to the server. PPTP needs to be forwarded through the PIX to the server. Mot solutions I viewed up there seemed to involved using the fixup protocol and NAT, but we need to use PAT on this one because the ISP has limited 1 MAC address to 1 IP. It seems to be forwarding PPTP but not GRE packets as per the hit counts on the ACLs below:

access-list cached ACL log flows: total 0, denied 0 (deny-flow-max 1024)
            alert-interval 300
access-list traffic_in; 11 elements
access-list traffic_in line 1 permit tcp any host WAN-IP eq 3389 (hitcnt=0)
access-list traffic_in line 2 permit tcp any host WAN-IP eq https (hitcnt=22)
access-list traffic_in line 3 permit tcp any host WAN-IP eq pop3 (hitcnt=0)
access-list traffic_in line 4 permit tcp any host WAN-IP eq ftp (hitcnt=0)
access-list traffic_in line 5 permit tcp any host WAN-IP eq www (hitcnt=0)
access-list traffic_in line 6 permit tcp any host WAN-IP eq 8088 (hitcnt=0)
access-list traffic_in line 7 permit tcp any host WAN-IP eq 8080 (hitcnt=0)
access-list traffic_in line 8 permit tcp host 204.209.44.106 host WAN-IP eq smtp (hitcnt=3)
access-list traffic_in line 9 permit gre any host SERVER-IP (hitcnt=0)
access-list traffic_in line 10 permit tcp any host SERVER-IP eq pptp (hitcnt=0)
access-list traffic_in line 11 permit tcp any host WAN-IP eq pptp (hitcnt=4)

The running config is also attached, I was able to verify that PPTP was working on the server just fine, please let me know how we can properly forward PPTP using PAT thanks.

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password sUh51JfF84zKYNlu encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname dc-edm-fw-01
domain-name danuk.local
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 ils 389
fixup protocol pptp 1723
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
no fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
name 42.42.1.2 WAN-IP
name 10.89.6.199 SERVER-IP
access-list traffic_in permit tcp any host WAN-IP eq 3389
access-list traffic_in permit tcp any host WAN-IP eq https
access-list traffic_in permit tcp any host WAN-IP eq pop3
access-list traffic_in permit tcp any host WAN-IP eq ftp
access-list traffic_in permit tcp any host WAN-IP eq www
access-list traffic_in permit tcp any host WAN-IP eq 8088
access-list traffic_in permit tcp any host WAN-IP eq 8080
access-list traffic_in permit tcp host 43.29.41.17 host WAN-IP eq smtp
access-list traffic_in permit gre any host SERVER-IP
access-list traffic_in permit tcp any host SERVER-IP eq pptp
access-list traffic_in permit tcp any host WAN-IP eq pptp
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside WAN-IP 255.255.252.0
ip address inside 10.89.6.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location SERVER-IP 255.255.255.255 inside
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 SERVER-IP smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 3389 SERVER-IP 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface ftp SERVER-IP ftp netmask 255.255.255.255 0 0
static (inside,outside) tcp interface pop3 SERVER-IP pop3 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface https SERVER-IP https netmask 255.255.255.255 0 0
static (inside,outside) tcp interface www SERVER-IP www netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 8088 SERVER-IP 8088 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 8080 SERVER-IP 8080 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface pptp SERVER-IP pptp netmask 255.255.255.255 0 0
access-group traffic_in in interface outside
route outside 0.0.0.0 0.0.0.0 42.42.1.1 1
timeout xlate 3:00:00
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 SERVER-IP 255.255.255.255 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 0.0.0.0 0.0.0.0 inside
ssh timeout 5
console timeout 0
terminal width 80
Cryptochecksum:774b479ce16ffa4d4ae5c52e9b190390
: end

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