location of included graphics

[Djones9976]

All,
Graphics that I include in a document using TexShop with iMac OS X seem to always group at the end of the document or somewhere they are not supposed to be.  The code I am using is:
p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Arial}\begin{figure}[!H]\begin{center}\includegraphics[scale=0.35]{diff-elastic-Xsect-Fe-Pb.eps}\end{center}\caption{Differential Elastic Scattering Cross Sections for 6.15 MeV Neutrons from Iron and Lead}\label{fig:ENERGY-Lead111}\end{figure}
The preamble I am using is:
 % !TEX TS-program = latex\documentclass[14pt, oneside]{article}    \usepackage[rflt]{floatflt}\usepackage{mathptmx}\usepackage{array}\usepackage{pstcol} \usepackage{pst-plot}\usepackage{graphicx}\usepackage{pstricks-add}\usepackage{amsmath, amssymb}  %%%%%%%%%%%%%%\usepackage[T1]{fontenc}\usepackage[utf8]{inputenc}\usepackage{url}\usepackage{tabularx}\usepackage{longtable}\usepackage{pstricks}\usepackage{pst-func}\usepackage{pst-math}\usepackage{xspace}\usepackage[colorlinks,linktocpage]{hyperref}\usepackage{wrapfig}\usepackage{pst-3dplot}\usepackage{fancyhdr}\setlength{\headheight}{15.2pt}\pagestyle{fancy}\usepackage{hyperref}\usepackage{color}\hypersetup{    colorlinks,%    citecolor=black,%    filecolor=black,%    linkcolor=black,%    urlcolor=black}\definecolor{orange}{rgb}{1,0.5,0}\definecolor{violet}{rgb}{1,0.5,0}\definecolor{brown}{rgb}{1,0.5,0}\definecolor{purple}{rgb}{1,0.5,0}\usepackage{resizebox}\usepackage{float}\usepackage{caption}      \usepackage{geometry}\usepackage{subfigure}
\usepackage{setspace}\usepackage{multido}\usepackage{pst-node}\usepackage{pst-coil}\usepackage{makeidx}\usepackage{setspace}\usepackage{subfigure}\usepackage{pgfplots}\usepgfplotslibrary{polar}\usepgflibrary{shapes.geometric}\usetikzlibrary{calc}\setlength{\headheight}{15.2pt}\pagestyle{fancy}\usepackage{color}\usepackage{pstricks,pst-node,pst-plot} %This loads the pstricks package p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Arial}p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Arial; min-height: 16.0px}span.Apple-tab-span {white-space:pre}

Any suggestions will be greatly appreciated.
Thank you in advance.
Wayne Jones
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