Configuring a presto store

I have an Os commerce store installed in [login to view URL] this store as some problems with the check out products in the shipping cart. I want to change to a presto store I had already install it and also install the translation to Portuguese and Brazilian payment methods. [login to view URL] This store will sell hosting plans combined with publicity services included and organized by "service plans". Those "service plans" can be combined to "service packs" this ones are packs that are created to complement the "service Plans" So what I knead is to worker to: -Installed the necessary plug-ins -Check to bugs on the store -If possible import the data base -Finish details from translation that I already installed