Cisco 1721 Paying for two t1's but only able to use 1 t1. Same provider on T's.

Looking for a solution to use 2nd t1. Currently it does not even hit 1% bandwith. Config could be worked on for possible solution? Current setup is as follows: 2 seperate t1 lines going into 2 wic cards on 1721 router....then to a switch...then to a pix 501. Serial 0 runs 95% consistenly, Serial 1 is pretty much dead 0%. Current config file below. Maybe I can get a 2nd router and throw in in the switch as well? As you can see I am clueless? Thank you

version 12.3
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname HB1721RTR
!
boot-start-marker
boot-end-marker
!
security authentication failure rate 3 log
security passwords min-length 6
logging buffered 51200 warnings

clock timezone NewYork -5
clock summer-time NewYork date Apr 6 2003 2:00 Oct 26 2003 2:00
no aaa new-model
ip subnet-zero
!
!
ip tcp synwait-time 10
ip name-server 209.144.50.127
ip name-server 209.144.50.140
!
!
no ip bootp server
ip cef
!
!
!
!
interface FastEthernet0
 description $FW_INSIDE$
 ip address 64.243.182.65 255.255.255.224
 no ip redirects
 speed auto
 full-duplex
 no cdp enable
!
interface Serial0
 description $FW_OUTSIDE$
 ip address 64.240.176.242 255.255.255.248
 ip access-group 101 in
 no ip redirects
 encapsulation frame-relay IETF
 no fair-queue
 service-module t1 timeslots 1-24
 service-module t1 remote-alarm-enable
 frame-relay map ip 64.240.176.241 211 broadcast IETF
 frame-relay lmi-type ansi
!
interface Serial1
 description $FW_OUTSIDE$
 ip address 64.242.15.110 255.255.255.252
 ip access-group 101 in
 no ip redirects
 encapsulation frame-relay IETF
 no fair-queue
 service-module t1 timeslots 1-24
 service-module t1 remote-alarm-enable
 frame-relay map ip 64.242.15.109 210 broadcast IETF
 frame-relay lmi-type ansi
!
ip classless
ip route 0.0.0.0 0.0.0.0 64.240.176.241
ip http server
ip http authentication local
ip http timeout-policy idle 600 life 86400 requests 10000
!
!
access-list 1 permit 10.10.0.0 0.0.255.255
access-list 10 permit 64.243.182.66
access-list 10 permit 206.117.136.91
access-list 10 permit 206.117.136.88
access-list 101 remark SDM_ACL Category=17
access-list 101 permit udp host 209.144.50.140 eq domain any
access-list 101 permit udp host 209.144.50.127 eq domain any
access-list 101 deny   tcp any any eq 135
access-list 101 deny   udp any any eq 135
access-list 101 deny   udp any any eq netbios-ns
access-list 101 deny   udp any any eq netbios-dgm
access-list 101 deny   tcp any any eq 139
access-list 101 deny   udp any any eq netbios-ss
access-list 101 deny   tcp any any eq 445
access-list 101 deny   tcp any any eq 593
access-list 101 deny   tcp any any eq 4444
access-list 101 permit ip any any
access-list 101 permit icmp any any
access-list 120 permit udp any any eq 1813
no cdp run