As Yas has already said, the stand alone extensions have been replaced by Design Extender, and Data Bridge
the current version of Super Suite is comprised of the following extensions:
eCart 6
Design Extender
Data Bridge
Free Tools
where you purchased Super Suite previously the upgrade pricing is:
eCart 6 - $99.99
Design Extender - $99.99
Data Bridge - $149.99
Log into your account, and on the my downloads page, you will see the available upgrades.