Your first approach - adding a link to a PDF file - is generally considered the easiest universally accessible approach for displaying documents that must exhibit a very specific format in a cross-browser fashion. However, if the PDF approach is not acceptable for accessibility reasons, then a partial list of other options include:

1. A link to a separate web page hosted outside of the Ning platform whereon you have placed an (X)HTML/CSS form of the document that excludes all other page elements (e.g., no header, no footer, no navigation, etc.). Keep in mind that even in this approach, the (X)HTML/CSS form of the document must observe cross-browser markup practices in order for all viewers to see the same form layout.

2. If the Ning platform permits, you can craft the form as an SWF file (i.e., with Flash or SwishMax for example) and use an ActionScript enabled button within the SWF file for purposes of hard-coding what will be printed when the ActionScript enabled SWF button is clicked. Thus, the form and the special "print form" button would all be within the SWF file uploaded to the Ning site.

use js..........

you have to specify a stylesheet for atrribute print!!

Then it will print using that stylesheet! So things that you don't want to print, you simply setting: display: hidden;

something like this:
hope it helps