If you need help, the last thing you want to do is to use Microsoft's help (pressing F1)... It's really rubbish.. Sorry MS !

The best place to look (IMHO) is google groups:

Google Groups

- this is where you're most likely to find an answer to your question as it's structured around a Problem => Solution framework, and someone else is sure to have encountered the same problem as you before... and solved it !

ExcelExperts.com also has it's own Question and answer section:
ExcelExperts.com Question and answer
This forum has the advantage of allowing you to upload files, and screen shots.