557229 oscommerce modication help

We are installing HeaderTags_SEO_V_3.2.8 and are facing some problems because is heavy modified shop already admin part is already installed except the categories. Front part i need some help with. Also we want attributes (options) as images installed, but not want to lose our current product attributes, so wanna know if this is possible. Only bid if you have worked with oscommerce modification before Got more work for sure if you manage this