You need to replace "...other columns..." with the names of the other columns you want to include in the results. Technically you could just add a "*" (meaning all columns). But a) that is really bad form and b) depending on how you're using it may not work since the column names won't be unique. But try it anyway, just to see.
SELECT t.UserUri AS ToUser, f.UserUri AS FromUser, *
FROM LcsLog.dbo.Messages m
INNER JOIN LcsLog.dbo.Users t ON t.UserId = m.ToId
INNER JOIN LcsLog.dbo.Users f ON f.UserId = m.FromId
WHERE t.UserUri = '
[email protected]'
Unfortunately, I'm not very familiar with the schema of those tables. If you could post a screen shot of the table columns, I could be more specific.