This looks like a routing issue.
Possibly your default gateway settings for host behind the 3030 is not the 3030 privtate interface.
Check if the host behind the 3030 has a route for the subnet behind the pix that is set to be sent to the 3030 privtae interface.
On a windows pc, you can do a route add ....... for the pix private network with gateway of the 3030 private.
Regards,