I am not aware of any tools which can accomplish this. I can give you a suggestion though. Query the syscomments table (view in SQL 2005) like this:
select so.[name] ObjectName, so.xtype ObjectType, substring(sc.[text], 1, charindex(sc.[text], '.') - 1) ServerName
from syscomments sc join sysobjects so on sc.id = so.id and so.xtype in ('P', 'TR', 'V', 'FN', 'IF', 'TF')
where sc.[text] like '%.%.%.%'
I have just typed it off in notepad so if it gives you any errors while executing tweak it a little. The query is straight forward to understand.
Let me know if it helped.
Venu