The easiest way to post a picture is to put it in The ZX-10R.net Gallery
There is no need to resize your images, the gallery will take care of this for you.
3 of the sections (Your Ride, Track Days and Nice day for a ride!) will save the full size images. To view these, click on the thumbnail to get to the image page, then click on the actual image and the full size original will open in a new window.
Click the new thread
or post reply
buttons, scroll down and you will see a section called Additional Options
. In this section you will see a button that reads Manage Attachments
under Attach Files
. Click this button and follow the directions.
If the image is hosted somewhere: Click the Insert Image button (
) and supply the url.
As for reducing the size of pictures, you will need software and know how to use it. Or you could post it up here and someone could do it for you.
More tips on resizing pictures can be found in this thread: http://zx-10r.net/forum/showthread.php?t=36582