\documentclass{scrartcl}
\usepackage[latin1]{inputenc}
\usepackage{tabularx}
\usepackage[letterpaper,top=2cm,bottom=1.5cm,left=1.1cm,right=1.5cm]{geometry}
\usepackage{graphicx}

\begin{document}

\pagestyle{myheadings}
\thispagestyle{empty}

\fontfamily{cmss}\fontsize{10pt}{12pt}\selectfont

<?lsmb include letterhead.tex ?>

\parbox[t]{.5\textwidth}{
<?lsmb name ?>

<?lsmb address1 ?>

<?lsmb address2 ?>

<?lsmb city ?>
<?lsmb if state ?>
\hspace{-0.1cm}, <?lsmb state ?>
<?lsmb end state ?>
<?lsmb zipcode ?>

<?lsmb country ?>
}
\parbox[t]{.5\textwidth}{
<?lsmb if customerphone ?>
Tel: <?lsmb customerphone ?>
<?lsmb end customerphone ?>

<?lsmb if customerfax ?>
Fax: <?lsmb customerfax ?>
<?lsmb end customerfax ?>

<?lsmb email ?>
}
\hfill

\vspace{1cm}

\textbf{S T A T E M E N T} \hfill \textbf{<?lsmb statementdate ?>}

\vspace{2cm}

\begin{tabular*}{\textwidth}{|ll@{\extracolsep\fill}ccrrrr|}
  \hline
  \textbf{Invoice \#} & \textbf{Order \#} & \textbf{Date} & \textbf{Due} &
  \textbf{Current} & \textbf{30} & \textbf{60} & \textbf{90} \\
  \hline
<?lsmb foreach invnumber ?>
  <?lsmb invnumber ?> & <?lsmb ordnumber ?> & <?lsmb invdate ?> & <?lsmb duedate ?> &
  <?lsmb c0 ?> & <?lsmb c30 ?> & <?lsmb c60 ?> & <?lsmb c90 ?> \\
<?lsmb end invnumber ?>
  \multicolumn{8}{|l|}{\mbox{}} \\
  \hline
  \textbf{Subtotal} & & & & <?lsmb c0total ?> & <?lsmb c30total ?> & <?lsmb c60total ?> & <?lsmb c90total ?> \\
  \hline
\end{tabular*}

\vspace{0.5cm}

\hfill
\begin{tabularx}{\textwidth}{Xr@{\hspace{1cm}}r@{}}
  & \textbf{Total outstanding} & \textbf{<?lsmb total ?>}
\end{tabularx}

\vfill
All amounts in \textbf{<?lsmb currency ?>} funds.

Please make check payable to \textbf{<?lsmb company ?>}

\end{document}

