Starting from scratch..
When posting directly below another post in some sections there is no img tag above..
 Soo.
 Copy the words you may have typed.
Above to the left is a "post reply" button hit that.
 Paste anything copied you may have.
Then
 (hang on just going to the "post reply" button).
 (just pasted this so far, over.)

 Now above is a icon with a tree.. the add pic button. Clk that.
 A new page opens.
Minimise that and drag from your desktop or whatever folder the pic you want into the "drag your files here" section.
 A upload bar appears and wait for it to finish.
 The pic now appears in the column below.
Clk on it and it will now appear in the "preview " part

IF you have changed the size of the pop up window with "preveiw" it will now most likely not show the bottom border, or may not show the bar on the rigfht side to see the bottom of the window.
 Drag the window bigger so can see the bottom right hand cnr and can see the "ok" and "cancel" buttons there.
 hit "ok"
 Pic comes up in your reply ready to post.

A suggestion.
 Before uploading crop your pic so cut out background edges anf bring what you want to show to the front....which I have not done in this upload.

Nps .. I was hoping was not being to simplistic and appear patronising.
 Enjoying the World cup Rugby?

Yep and not just the All Blacks.. for a little country, and small population we kick well above in so many sports and fields.

And the Japanese Rugby team has come a long way in recent yrs. Along with Argentina, Namibia and several other countries.
From my perspective, yep we must win attitude... but the opposition must be able to give us a good run for our money, not just be walked over,
 Even thu the score may not represent that.
 Makes for a good entertaining game to watch...a walk over on the field is not entertaining.

that worked, only went for small size can put bigger if you want?

 Size.. file size or dimensions?
 yes.. limits are noted in the upload window

 It is best to edit before uploading
1/ crop out background and keep the subject of what you want in the foreground. Pic presents much better.
 This also reduces file size and dimensions.
2/ change width to about 600...If the size is still too big this will have a 99.9% chance of reducing to within specs.