pptp remote access vpn on pix 6.3

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
access-list nonat permit ip 1.1.1.0 255.255.255.0 1.1.1.0 255.255.255.0
ip address outside 58.135.192.7 255.255.255.192
ip address inside 1.1.1.254 255.255.255.0
ip local pool pptp 1.1.1.2-1.1.1.10 mask 255.255.255.0
nat (inside) 0 access-list nonat
route outside 0.0.0.0 0.0.0.0 58.135.192.62 1
sysopt connection permit-ipsec
sysopt connection permit-pptp
vpdn group pptp accept dialin pptp
vpdn group pptp ppp authentication mschap
vpdn group pptp ppp encryption mppe auto
vpdn group pptp client configuration address local pptp
vpdn group pptp client configuration dns 202.106.116.1
vpdn group pptp pptp echo 60
vpdn group pptp client authentication local
vpdn username pptp password *********
vpdn enable outside