Just saw this on Ebay. This is the 24' version. Awesome machine! Same year as mine.
http://www.ebay.com/itm/2007-24-Sear...m=252690405902
The newer ones do have some refinements such as completely foam filled hulls for CG approvals. The one on ebay does look to have spring action seats, mine did not and let me tell ya my spine knew it at the end of the day!