CONCAT function + SQL Sever 2005

I cant find a clear answer to the syntax of concat in for SQL 2005. Can anyone help.it's still the same old plus sign|||I figured out what I was doing wrong. I used text as my data type for the two fields I was trying to CONCAT. So when I did First_name + ' ' + Last_name is was treating the two columns as text and the blank space as a varchar. So i would execute.|||don't use the text type for such small fields as first and last names. text is for big blobs of text longer than 8000 chars. I don't know anyone with such a long name. :)

and in 2005, don't use text at all. use varchar(max) or nvarchar(max).