Would sombody please give me a hint on how to do this?

I have a 300 page word document that I am supposed to use as the basis for
building a help project.
The document has many images in it, many that allow word wrapping.  This
doesn's convert very well
to the html format that I have to use for the help, so I want to build a
macro that will search for all images and
allow me to enclose these images inside tables and left align both the
tables and images

One of the issues that I face is that some of the images are already inside
a table and for these I do not want to
add yet another surroundng table.  But I don't know how to test to see if my
selection is inside a table.

The code below I got from just recording a macro.  This finds and selects
images.

  Selection.Find.ClearFormatting
   With Selection.Find
       .Text = "^g"
       .Replacement.Text = ""
       .Forward = True
       .Wrap = wdFindContinue
       .Format = False
       .MatchCase = False
       .MatchWholeWord = False
       .MatchWildcards = False
       .MatchSoundsLike = False
       .MatchAllWordForms = False
   End With
   Selection.Find.Execute