This is the way you should attempt making such tables then... compile
the following minimal example to see what I'm talking about:
\documentclass{article}
\usepackage{lipsum}
\usepackage{longtable}
\begin{document}
\lipsum[1]
\begin{table}[htb]
\begin{longtable}{ccc|ccc}
\hline
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
line & 1 & 2 & 3 & 4 & 5 \\
\hline
\end{longtable}
\caption[short caption]{\lipsum[2]}
\label{tester}
\end{table}
\lipsum[3]
\end{document}
Is there any particular reason why you do not enclose you longtable
environment within a table environment?
Werner