This is a guideline for how to layout your tutorial posts.
Title section of posts - This section is optional, but if used should be in the following style:
[i]subtitle1[/i] - date
That is two blank lines below the subtitle/date line.
Section titles within posts - This would be used when wanting to split your tutorial up into sections.
Images - This one is straight forward, simply using the img tag, followed by a description
I suggest hosting images on a service such as imageshack, flickr, photobucket, or localhostr, as hotlinking images from elsewhere is not good!
If you have any more suggestions let me know