Iron Man question

Anyone explain?  I'm sure it's like this for a reason, but it looks funny: 

Invincible Iron Man (2008) issues 1-22 
http://www.comicvine.com/the-invincible-iron-man/49-21487/
 
Invincible Iron Man vol. 2 (2009) issue 1 (but looks like issue 8 above)
 http://www.comicvine.com/invincible-iron-man-vol-2/49-30989/
 
Invincible Iron Man vol. 3 (2010) issue 1 (but looks like issue 14 above)
 http://www.comicvine.com/invincible-iron-man-vol-3/49-30990/
 

I still don't think that trades should be included in the database...it's to confusing for new readers...especially if the individual issues are already there