Triggers Question

I have a trigger under table tblSubscribe in my database and I currently have it where it triggers off of an Update command.  It works off of all Updates that happen to the table currently

USE [xxxxxx]
GO
/****** Object:  Trigger [dbo].[alertFCountTrigger]    Script Date: 09/21/2012 16:29:49 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[alertFCountTrigger]
ON [dbo].[tblSubscribe]
AFTER UPDATE
AS
   EXEC msdb.dbo.sp_send_dbmail
        @profile_name = 'xxxxx',
        @recipients = 'xxxxx',
        @body = 'TEST TEST TEST',
        @subject = 'Reminder';

I want to make modifications to my trigger, I have a column named Frequency where if that column = "Daily" the if statement would be true and a column name fCount and if that statement = 1 the if statement would be true (value initialized at 0).

Now I know you would have to declare and set those values in the trigger. Most likely after the "AFTER UPDATE AS" lines.  Can someone please help me. Thanks