You can use bookmarks to tell your userform where you want things, including
the insertion point when it is closed. On the other hand, I use styles
rather than bookmarks for many of my insertion points. I use one style for
the date line, a different style for the initial line of the inside address,
a third for the continuation lines, a different one for the reference line,
for the greeting, and for the body of the letter. I do this because these
styles are very handy when creating continuation headers/footers. You use a
StyleRef field to pick up these bits of information. You can have your
userform's closing procedure search for the first instance of the body text
style if you want. I have a macrobutton field with the display [Type letter
here.] and have my procedure select that field. Lots of options available.

Actually, I have my letter template set up with lots of macrobutton fields.
My Userform puts things in those fields (replacing the fields). If the user
cancels the UserForm, the macrobutton fields are there in the document as
prompts and can be reached easily with the F11 key.

See http://www.addbalance.com/usersguide/fields.htm#MacroButton and
http://www.mvps.org/word/FAQs/TblsFldsFms/UsingMacroButton.htm for more
about macrobutton fields.

Take a look at: How to set up letterhead or some other document where you
want one header on the first page and a different header on other pages.
http://www.addbalance.com/word/headersfooters.htm This gives step-by-step
instructions. (It also has the following links)

Some other pages to look at:

Letterhead Tips and Instructions
http://sbarnhill.mvps.org/WordFAQs/Letterhead.htm

Letterhead Textboxes and Styles tutorial
http://addbalance.com/word/download.htm#LetterheadTextboxesAndStylesTutorial

Template Basics
http://www.addbalance.com/usersguide/templates.htm

How to Create a Template - Part 2 - essential reading
http://www.mvps.org/word/FAQs/Customization/CreateATemplatePart2.htm

Word "Forms"
http://www.addbalance.com/word/wordwebresources.htm#Forms and

Word for Word Perfect Users
http://www.addbalance.com/word/wordperfect.htm if you are coming from a WP
environment (or even if you are not).

Hope this helps,