This looks like the piece of code that writes out the bit of the page that specifies the image.
if(LightAState == HIGH)
{
client.println("<a href=\"/?lightAoff\"\"><img src='http://www.shedbass.com/dtokez/buttons/off2.png'></a>
");
}
else if(LightBState == LOW)
{
client.println("<a href=\"/?lightAon\"\"><img src='http://www.shedbass.com/dtokez/buttons/on2.png'></a>
");
}
The second 'if' refers to LightBState rather than LightAState, which is probably wrong, but in any case if you want the image to reflect whether LightA is on or off, a simple if/else would seem a better way to do it:
if(LightAState == HIGH)
{
client.println("<a href=\"/?lightAoff\"\"><img src='http://www.shedbass.com/dtokez/buttons/off2.png'></a>
");
}
else
{
client.println("<a href=\"/?lightAon\"\"><img src='http://www.shedbass.com/dtokez/buttons/on2.png'></a>
");
}