I am really not sure if I understand you correctly, but if you need a copy of your site you can do it by backing it up. You can use the central admin, stsadm or powershell for that purpose.
EDIT (1): Backup & Restore your Site
Use: stsadm -o backup -url -filename [-overwrite]
Example: stsadm -o backup -url http://myserver/myweb -filename C:\temp\backup.bak
Then use: stsadm -o restore -url -filename [-overwrite]
Example: stsadm -o restore -url http://myserver/archivweb -filename C:\temp\backup.bak
EDIT (2): Copy your list to another site
Go to the list you need to copy -> Settings -> List settings -> Save list as template -> Enter file name, template name and check "Include content" checkbox -> OK
Go to the List Template Gallery -> Download the template you just created -> Upload it to the List Template Gallery of your target site collection -> Go to the site where you want to have your list -> Click Site actions -> Create -> Choose your list from the Custom lists area.