I am moving servers while upgrading to SP3 I have the new server setup and
using the technet docs step by step... I'm on the last page
http://technet2.microsoft.com/Office/en-us/library/3fc0177c-b364-4a1b-b3af-4c5560afe50c1033.mspx?pf=true
and have my content databases copied from my old v2 server, and I'm running
the below command with my files specifics punched in, but after I hit enter
and type Go and enter again, nothing happens. Is there a missing step in
these docs? Anyone else tried this way?

EXEC sp_attach_db @dbname = N'Content_Database_name', @filename1 =
N'%WINDIR%\SYSMSI\SSEE\MSSQL.2005\MSSQL\Data\<dbname>.mdf', @filename2 =
N'%WINDIR%\SYSMSI\SSEE\MSSQL.2005\MSSQL\Data \<dbname>_log.ldf'