question about Dell installed software and upgrade?

when i recieved my Dell 4600, it came with a software program installed called Paintshop Photo Album 4 SE (starter edition)with a 60 day trial that includes the features of the full version.

i want to keep the software active in it's full version, so do i need to purchase the full version and uninstall the trial and then reinstall the licsensed version?

here is a link to the program......

http://accessories.us.dell.com/sna/ProductDetail.aspx?category_id=5232&k=&mnf=&brandid=&prst=&prEnd=&sku=A0246117&mnfsku=&SearchType=&Page=productlisting.aspx&spagenum=1&Pageb4Search=&InStock=&items_per_page=25&orderby=&mnfname=&brand=&SubmitSearch=&image_flag=True&refurbished=&c=us&l=en&cs=19&iCompatid=

or do i need to buy this version...........

http://accessories.us.dell.com/sna/ProductDetail.aspx?category_id=5232&k=&mnf=&brandid=&prst=&prEnd=&sku=A0286904&mnfsku=&SearchType=&Page=productlisting.aspx&spagenum=1&Pageb4Search=&InStock=&items_per_page=25&orderby=&mnfname=&brand=&SubmitSearch=&image_flag=True&refurbished=&c=us&l=en&cs=19&iCompatid=

thx

-mike