That's HTML, in forums you need to use BBCode 
To insert an image, use this:
You can also link images like this:
This second example is what your Photobucket code is trying to do, but with HTML. So to translate it exactly, what you'd want to do is this:
Which will give you this:
![[Image: 1352273601.png]](http://i434.photobucket.com/albums/qq67/nokensmok/1352273601.png)
This is said in more detail in the Submissions Forums for Beginners thread, along with some other tips on submitting sheets.
To insert an image, use this:
Code:
[img]URL to image[/img]You can also link images like this:
Code:
[url=URL to link/image][img]URL to image[/img][/url]This second example is what your Photobucket code is trying to do, but with HTML. So to translate it exactly, what you'd want to do is this:
Code:
[url=http://s434.photobucket.com/albums/qq67/nokensmok/?action=view&current=1352273601.png][img]http://i434.photobucket.com/albums/qq67/nokensmok/1352273601.png[/img][/url]Which will give you this:
![[Image: 1352273601.png]](http://s434.photobucket.com/albums/qq67/nokensmok/?action=view&current=1352273601.png)
This is said in more detail in the Submissions Forums for Beginners thread, along with some other tips on submitting sheets.