Hi Brent,
Assume what you found was
 Insert Selected Picture Into Comment
 http://www.contextures.com/xlcomments03.html#Picture

I'm not clear on what you want, it seems you just want to
hyperlink to the picture, in which case such pictures need
not reside in Excel.    If that is the case it will keep your
Excel file a lot smaller (meaning it won't make it so huge).
So you would simply link to the pictures as if they were
HTML files and let the system recognize the application
to be used to open your TIFF files based on their filetype
extension.

If  file is on your system
 A1:  Beautiful Sunset
 B1:  =HYPERLINK(C1,"view")
 C1:  c:\mypictures\img304.tif

or you can use concatenation
 A1:  Beautiful Sunset
 B1:  =HYPERLINK("c:\mypictures\img" & C1 &".tif","view")
 C1:  304

similar code for files on the web

If this is for something like a slide show that you might want
to generate an HTML file using Excel.
 http://www.mvps.org/dmcritchie/excel/xl2html.htm
which helps you create a table to add to your own HTML.

Or many photo software applications can generate HTML.
---
HTH,
David McRitchie, Microsoft MVP - Excel
My Excel Pages:  http://www.mvps.org/dmcritchie/excel/excel.htm
Search Page:        http://www.mvps.org/dmcritchie/excel/search.htm