I said "go into its header & footer and make sure the 'same as previous' setting is off". That's because, if you leave the 'same as previous' setting on, the imported file will simply pick up the target document's header and footer.
If you open the header/footer, which you'll probably need to do on page 2 of the 'source' document, the 'link to previous' button will be highlighted. If you click on that, the the 'same as previous' setting will be turned off.
Your 'source' and 'target' documents should have the same format! If the default document format isn't what you want, make a copy of one of your 'source' documents, delete all its content, then use it as the 'target' document.
There are two problems with the INCLUDETEXT field you had displayed in the document:
• you have a '\* MERGEFORMAT' switch in the field in post #5. Delete it. That's meant to control some aspects of formatting. If you don't delete it, it might cause more problems.
• when you insert an INCLUDETEXT field manually (which you can do without going through the dialogue box), the file path needs to have two backslashes for each path separator (see the field in post #5) - or you can replace the backslashes with single forward slashes. For example:
{INCLUDETEXT "F:\\All\\Various\\Graduation Project ENCE530\\doc\\ch1 Introduction(1-2).doc"}
or:
{INCLUDETEXT "F:/All/Various/Graduation Project ENCE530/doc/ch1 Introduction(1-2).doc"}
To insert these fields manually, go to wherever you want to insert one, press Ctrl-F9, then insert the field code. When you're done, press F9 to update.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]