can symantec technical team helps me to open these tech note >?

Yes,You can contact symantec support

recantly Symantec has expired some article.

See same problem on security community

https://www-secure.symantec.com/connect/forums/link-not-found

Here is the cached copy, you can always get this

http://webcache.googleusercontent.com/search?q=cache:1hzIYFK_EVsJ:www.symantec.com/business/support/index%3Fpage%3Dcontent%26id%3DTECH153802+&cd=1&hl=en&ct=clnk&gl=in

Other KB is removed , you may need to search based on key words, KB might be update to a different one.

Are you want below KB

7.x Upgrade Portal

The TNs you are looking for are for old NBU/VBR versions that are no longer supported.

Rather start a new discussion with your actual issue/problem/query.
 

actually we ant to upgrade VBR

But current VBR Version giving error when we are connecting agent 

"there was an error while getting complete Data Collector status for agent :retries exceeded couldn't reconnect to "server:7806""

So this technote has three steps to resolve this when i opened before, but now its expired

CAN SYMANTEC Team give me the steps from above mentioned tech note from thier old data tech notes please??

thanks all for reply ,