% Set up the document
\documentclass[a4paper, 11pt, oneside]{Thesis} % Use the "Thesis" style, based on the ECS Thesis style by Steve Gunn
\usepackage{graphicx}
\graphicspath{Figures/} % Location of the graphics files (set up for graphics to be in PDF format)
% Include any extra LaTeX packages required
\usepackage[square, numbers, comma, sort&compress]{natbib} % Use the "Natbib" style for the references in the Bibliography
\usepackage{verbatim} % Needed for the "comment" environment to make LaTeX comments
\usepackage{vector} % Allows "\bvec{}" and "\buvec{}" for "blackboard" style bold vectors in maths
\hypersetup{urlcolor=blue, colorlinks=true} % Colours hyperlinks in blue, but this can be distracting if there are many links.
\usepackage{subfig}
********************************************
\begin{figure}
\centering
\includegraphics[width=10cm]{111}
\caption{\label{fig:1}Pressure at point 1}
\end{figure}
\begin{figure}[h]
\centering
\includegraphics[scale=0.2]{432.jpg}
\caption{Closed loop Control}
\label{Fig 1}
\end{figure}
\begin{figure}[!h]
\centering
\includegraphics[scale=.3]{112.jpg}
\caption{\label{fig:1}$v_x$ at point 1}
\end{figure}
It seems that you used the draft option. It is not visible in the code part you posted, but that's incomplete anyway. Is this your full preamble? Look for the draft option to the class, or to the graphicx package. This option doesn't include images (for speed or saving ink) but draws only frames.
what Stefan said is the thing to look for. Something toggled the draft mode.
One other thing to mention: The template you are using is extremely outdated. If you just started, i recommend to use a minimal template. For more information, have a look at this.
The smart way: Calm down and take a deep breath, read posts and provided links attentively, try to understand and ask if necessary.
