\parbox{\textwidth}{%
  \parbox[b]{.42\textwidth}{%
    <?lsmb company ?>
   
    <?lsmb address ?>
  }
  \parbox[b]{.2\textwidth}{
    \includegraphics[scale=0.3]{logo}
  }\hfill
  \begin{tabular}[b]{rr@{}}
  Tel: & <?lsmb tel ?>\\
  Fax: & <?lsmb fax ?>
  \end{tabular}

  \rule[1.5em]{\textwidth}{0.5pt}
}

