The End of SW Maintenance for LMS 2.6 (Common Services 3.0.6) was June 11, 2009, so I think you're SOL trying to get the patch for CS 3.0.5 now.
http://www.cisco.com/en/US/prod/collateral/netmgtsw/ps6504/ps6528/ps2425/prod_end-of-life_notice0900aecd80532c07.html
Table 1. End-of-Life Milestones and Dates for the CiscoWorks LAN Management Solution 2.6
Milestone | Definition | Date |
End-of-Life Announcement Date | The date the document that announces the end of sale and end of life of a product is distributed to the general public. | June 12, 2007 |
End-of-Sale Date | The last date to order the product through Cisco point-of-sale mechanisms. The product is no longer for sale after this date. | June 11, 2008 |
Last Ship Date:
App. SW | The last-possible ship date that can be requested of Cisco and/or its contract manufacturers. Actual ship date is dependent on lead time. | September 10, 2008 |
End of SW Maintenance Releases Date:
App. SW | The last date that Cisco Engineering may release any final software maintenance releases or bug fixes. After this date, Cisco Engineering will no longer develop, repair, maintain, or test the product software. | June 11, 2009 |
End of New Service Attachment Date:
App. SW | For equipment and software that is not covered by a service-and-support contract, this is the last date to order a new service-and-support contract or add the equipment and/or software to an existing service-and-support contract. | June 11, 2009 |
End of Service Contract Renewal Date:
App. SW | The last date to extend or renew a service contract for the product. | September 10, 2010 |
Last Date of Support:
App. SW | The last date to receive service and support for the product. After this date, all support services for the product are unavailable, and the product becomes obsolete. | June 30, 2011 |
