Hi,
Start by doing a 'show version'. The look under the 'Licensed Features' section. The actual features you have enabled will depend on the bundle you have. For example, the Restricted bundle has 3 interfaces, the others have 6. In addition, the Restricted bundle does not support failover. The following document has a list of the differences:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_data_sheet09186a00800b0d85.html
IF you still can't make it out, post the output of 'show version' and we can take a look...
Hope that helps - pls rate the post if it does.
Paresh
