Problem pinging across site to site tunnel (515E to 501)

We just moved and office mid-week and the new location has a new ip range. Made all changes on both of the PIX's and a "show crypto isakmp sa" is returning:

PIX01(config)# show crypto isakmp sa
Total     : 1
Embryonic : 0
        dst               src        state     pending     created
  xxx.xxx.xxx.xxx    xxx.xxx.xxx.xxx    QM_IDLE         0           2

on PIX01 and:

PIX02(config)# show crypto isakmp sa
Total     : 1
Embryonic : 0
        dst               src        state     pending     created
  xxx.xxx.xxx.xxx    xxx.xxx.xxx.xxx    QM_IDLE         0           2

on PIX02.

I can ping PIX to PIX with no problem but I cannot ping a remote workstation. From my limited knowledge it appears as though the tunnel is up but other then the outside address nothing else on the PIX has changed. Maybe I did the commands in the wrong order...?

Basically I just need to complete the tunnel.

Thanks in Advance.