This solution does not rely on tables. Whether it will work with your template, however: that is anyone's guess. As Alan Munn pointed out, we cannot possibly know.
I define two new commands:
\imgfraction{<fraction>} takes a single argument which specifies the fraction of the text width to be occupied by the images e.g \imgfraction{.75} or \imgfraction{.002};
\imgtxt[<options passed to \includegraphics>]{<image filename>}{<text>} takes one optional and two mandatory arguments, where the first specifies options to pass to \includegraphics, the second specifies the filename of the image, and the third specifies the text e.g. \imgtxt[width=.75\linewidth]{example-image-a}{Great explanation of A's importance} or \imgtxt{small-image}{Questions raised}.
TikZ is used to draw the arrow. This is saved in a box for re-use to avoid the need to repeatedly render it.
The command is configured so that it will generally do the right thing in terms of whether to use an arrow or not. It can, for example, cope with more than one image sequence in a document (using afterpage). As I understand your use-case, however, I take it that you do not need sequences which themselves span multiple pages and the code is not designed to cope with that kind of eventuality.
Here's an example of two sequences one using example images from the mwe package and the other using the ubiquitous tiger supplied in standard distributions. Note that \imgfraction{} is used in between to adjust the proportion of the page used for the tigers in the second sequence.

\documentclass{article}
\usepackage[x11names]{xcolor}
\usepackage{calc,tikz,afterpage,kantlipsum}
\usetikzlibrary{shapes.arrows,shadows}
\newcommand\imgtxt[3][]{%
\iffirstimgtxt\firstimgtxtfalse\afterpage{\global\firstimgtxttrue}%
\else
\noindent\begin{minipage}{\imgtxtimgwidth}
\centering
\usebox\imgtxtarrow
\medskip
\par
\end{minipage}
\par
\fi
\noindent
\begin{minipage}[c]{\imgtxtimgwidth}
\centering\includegraphics[#1]{#2}\medskip\par
\end{minipage}%
\begin{minipage}[c]{\imgtxttxtwidth}
#3\medskip\par
\end{minipage}\par}
\newif\iffirstimgtxt
\firstimgtxttrue
\newsavebox\imgtxtarrow
\sbox\imgtxtarrow{%
\tikz{%
\node [single arrow, drop shadow, draw=Green4, line width=1pt, inner color=white!50!Green4, outer color=white!10!Green4, shape border uses incircle, shape border rotate=-90, text height=2.5mm, text width=5mm] {};
}%
}
\newlength\imgtxtimgwidth
\newlength\imgtxttxtwidth
\newcommand*\imgfraction[1]{%
\setlength\imgtxtimgwidth{#1\textwidth}%
\setlength\imgtxttxtwidth{\textwidth-#1\textwidth}%
}
\imgfraction{.25}
\begin{document}
\imgtxt[width=.75\linewidth]{example-image-a}{\kant[1]}
\imgtxt[width=.75\linewidth]{example-image-b}{A very little text.}
\imgtxt[width=.75\linewidth]{example-image-c}{\kant[2]}
\newpage\imgfraction{.3}
\imgtxt[width=.9\linewidth]{tiger}{Introducing tigers and other big cats.}
\imgtxt[width=.9\linewidth]{tiger}{A very little more text.}
\imgtxt[width=.9\linewidth]{tiger}{\kant[3]}
\end{document}
floatrowpackage? The text may be abeside caption(without any label) – Bernard Aug 29 '15 at 18:38tabu- if there is a way to use tables withouttabuthen I am willing to give it a try. Any suggestions? – kexxcream Aug 29 '15 at 18:53tabuprovided you will not be concerned when your documents break. The author has promised an update with no backwards compatibility and no support for existing code. Meanwhile, serious bugs will not be fixed. – cfr Aug 31 '15 at 00:51