This next worksheet i use for the yearly accounts.
Again the headings can be changed. This sheet is linked automatically to the information entered on the file called APRIL2010.
I have these files in a folder i named dai hutton window cleaning. Sorry dai.

In this folder i have a file for each month, a yearly excel file that summarises the year and also a yearly expenditure breakdown.
With this yearly sheet the information entered on the above file called APRIL2010 is automatically entered and added up on this this yearly worksheet sheet.
The formula used to link it is this ='C:\Documents and Settings\mark\Desktop\dai hutton window cleaning\[APRIL2010.xls]Sheet1'!J1
Whenever the information is linked from the monthly accounts to yearly accounts, this file will add up the numbers.
You just change the month name to keep repeating the information on the next months file which would be called MAY2010.
='C:\Documents and Settings\mark\Desktop\dai hutton window cleaning\[MAY2010.xls]Sheet1'!J1
TheN JUNE2010 etc.