\documentclass{article}

\usepackage{graphics}

\title{Your Paper}
\author{You}

\begin{document}
\maketitle

\begin{abstract}
Your abstract.
\end{abstract}

\section{Introduction}

This is the start of the document.

\begin{figure}[ht]
\includegraphics[0,0][100,100]{frog.jpg}
\end{figure}

This is the end of the document.

\end{document}
