Quote - I bought Victoria Elite and Victoria bundle from Daz. I don't know how to manually navigate to the right area as I am not familiar with the file structure (yet).

Every item has a READ ME, in it you find usually a text file called Product List, in that you find the locations for each file that belongs to the purchased item.

Don't install new stuff into your Poser runtime. Install it at some other place and then put them manually into the folders as you'll find the locations in the product list of the ReadMe.