I need help adding a router to my network

I'm using a Cisco 1750 to subnet my office network. I've got 2 interfaces defined: 10.71.42.126 and 10.71.42.158.

I'm trying to connect my branches using an MPLS connnection. I've set the new MPLS router at 10.71.42.142. I can ping 142 from source 158, but not from 126.

I had the MPLS router setup with these static routes:
Ip route 10.71.42.0 255.255.255.128 10.71.42.126
Ip route 10.71.42.128 255.255.255.224 10.71.42.158
Ip route 10.71.42.160 255.255.255.224 10.71.42.158 (this is my dmz for the email server)
I feel as though I'm overlooking something on my Cisco. Can someone look at my config and give me a suggestion?

Current configuration : 2416 bytes
!
! Last configuration change at 20:48:54 UTC Sun Sep 7 2008
! NVRAM config last updated at 20:49:07 UTC Sun Sep 7 2008
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CFB-1750
!
boot-start-marker
boot-end-marker
!
no logging console
enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
!
memory-size iomem 25
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
snmp-timeout 180
no aaa new-model
ip subnet-zero
!
!
!
ip cef
ip inspect name firewall cuseeme
ip inspect name firewall fragment maximum 256 timeout 1
ip inspect name firewall ftp
ip inspect name firewall http java-list 51
ip inspect name firewall realaudio
ip inspect name firewall smtp
ip inspect name firewall sqlnet
ip inspect name firewall streamworks
ip inspect name firewall tftp
ip inspect name firewall vdolive
ip inspect name firewall tcp
ip inspect name firewall udp
ip inspect name firewall h323
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
interface Ethernet0
 description Connected to xxxxxxx DMZ
 ip address 192.168.1.254 255.255.255.0
 ip helper-address 10.71.42.125
 ip helper-address 10.71.42.164
 half-duplex
 no cdp enable
!
interface FastEthernet0
 description Connected to xxxxxxx Protected
 ip address 10.71.42.126 255.255.255.128 secondary
 ip address 10.71.42.158 255.255.255.224
 ip helper-address 10.71.42.164
 ip helper-address 10.71.42.125
 no ip redirects
 ip route-cache same-interface
 speed 100
 full-duplex
 no cdp enable
!
interface Serial0
 no ip address
 shutdown
 no fair-queue
 no cdp enable
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.1
ip route 10.6.1.0 255.255.255.0 10.71.42.99
ip route 10.71.40.0 255.255.255.0 10.71.42.142
ip route 10.71.41.0 255.255.255.0 10.71.42.142
ip route 10.71.42.160 255.255.255.224 192.168.1.1
ip route 10.71.43.0 255.255.255.0 10.71.42.142
ip route 10.71.44.0 255.255.255.0 10.71.42.142
ip route 10.71.45.0 255.255.255.0 192.168.1.1
ip route 10.73.18.0 255.255.254.0 10.71.42.129
ip route 10.120.168.0 255.255.255.0 10.71.42.99
ip route 192.9.200.0 255.255.255.0 10.71.42.129
no ip http server
no ip http secure-server
!
!
no cdp run
!
!
line con 0
 exec-timeout 120 0
 login
 transport preferred all
 transport output all
line aux 0
line vty 0 4
 exec-timeout 120 0
 password xxxxxxxxx
 login
 transport preferred all
 transport input all
 transport output all
!
!
end