Hi :)

1.  I don't usually stress over this, myself - 
I've noticed some people remove it within a day 
of selling, and others have had cels still in 
their gallery that I know were sold ages ago, so 
when I buy from them, I expect the same.  If it 
bothers you, though, I'd say a month or so after 
receiving the cel would be a good time.  A year 
is well beyond that ^_^;

2.  All the large pictures are automatically 
unclickable in rubberslug.. I don't think 
there's any way to do that to your whole site.  
This doesn't deter people from saving your 
images, btw - there are 2 very easy ways of 
saving pictures that do not require the right-
click-save method, and 1 or 2 easy ways of 
disabling that feature altogether.  I've learned 
that by posting things publically, you have to 
accept that they will be taken regardless of the 
amount of javascript, watermarks, and copyright 
notices used - so I would personally recommend 
not using the right-click-thing on any other 
pages, because it usually just winds up annoying 
the honest visitors.  ^_^