I have a CSV file exported from my stock control system (Sage Accounts) which I am going to need to use to firstly import all of my many products into Opencart to get set up and then on a daily basis to get stock levels up to date on the website (as we sell mostly wholesale over the phone).
The problem I have is that in Sage and the CSV file, each product's sizes (most commonly 4) is in as individual entries that each have a unique barcode number and stock level.
My concern is how I'm going to tell Opencart to group these 4 entries into one product with size options and not have 4 of the same image/product etc for the different sizes on the site.
I'm new to all this and have found this CSV Import Pro http://www.opencart.com/index.php?route ... order=DESC and others which seems like it'll work in principal.
Any help or advice or just a point in the right direction would be massively appreciated as this the last issue I have to deal with before going live and I just can't get my head around it

Thanks to anyone in advance for their time. If you need any further information, I'll happily provide.
Kenny Kinetic