I don't know if the following registry settings are causing me any problems?

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\SQL

The following are values:

DB1 REG_SZ MSSQL.2
LTCDB REG_SZ MSSQL.3
DB2 REG_SZ MSSQL.5
DB3 REG_SZ MSSQL.6
WEBDB REG_SZ MSSQL.7
CITRIXDB REG_SZ MSSQL.8

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server

The following are keys:

MSSQL.1 (DB3) (not above)
MSSQL.2 (DB1)
MSSQL.3 (LTCDB)
MSSQL.4 (WEBDB) (not above)
MSSQL.5 (DB2)
MSSQL.6 (DB3)
MSSQL.7 (WEBDB)
MSSQL.8 (CITRIXDB)