I am trying to find a way to make an image span the full page width but have been unable to do so. Is this possible? I have been trying variations on the following, even with \oddsidemargin set to 0 but I cannot get it to span the full page width:
On a side note: I see that you are using a \label command inside a figure environment without the corresponding \caption command; this will produce undesired results when referencing the figure. Inside floats (figure, table) the \label command must be placed after the corresponding \caption command.
You, sir, are a master. Thank you very much for your response. I used chngpage and it did exactly what I wanted. Thank you again for your informative reply.
by the way, is it possible for chngpage to modify \voffset?
Thank you very much, looking at geometry now. This modification of \voffset is, in this case, for the first page only as I am trying to place an image just a little bit higher than "top". I don't intend for this change to propagate to subsequent pages.
Then, you don't need to change \voffset; you need to change the value of topmargin; to do this, don't use the geometry package (the changes made using geometry will affect all the document) and use in its stead some of the features of the chngpage package to achive the desired result. You can find a description of the commands and environments in the file chngpage.sty itself.