is it possible to upgrade & keep only some of the features of the older version

[biketrip]

i want to upgrade from 1.4.6.2

can i upgrade & keep only the user accounts, orders , and all the stats? 

all the modules ill reinstall as needed later & the products i need to make a clean start with them anyway

...

[guest*]

There are two possibilities: You make a manual upgrade only from database  http://www.prestashop.com/forums/topic/251288-manual-upgrade-guide-ps-12-ps-13-ps-14-upgrade-only-database/ or http://www.prestashop.com/forums/topic/271082-upgrade-tips/

 

or you use the 1-click-upgrade module for more comfort.

 

Own theme and extra implemented modules on your Ps1.4. shop which are not native do not work anymore with Prestashop 1.5. You should upgrade them too.