First, thank you heaps for such a great shop (v1.4.9.1)

I have checked everything I could find in hundreds of posts here over the last few days:
- permissions all ok except on /image/cache/data (0755); when I delete it via php script (because opencart created it and I'm not the owner on the server), opencart re-creates it with perms 0755. I change it to 0777 and still no go. All other perms set as Daniel says on the image/ structure to 0777.
- deleted browser caches, cookies, temp files, everything, tried firefox 5.3.9 instead of IE8, image manager no go.
- multiple downloads o 1.4.9.1 zip and extractions of them and re-installs in case of corrupt files, image manager no go
- ensuring my images can open properly in case of corruption, images all fine, image manager no go
- shop is completely SSL, catalog & admin
I am currently getting around this (to try to get my shop going) by ftp-ing the files into the right dirs then using phpMyAdmin to change the appropriate records in "<prefix>settings"(store logo) and "<prefix>product_image" db tables.
If you want to work on this with me (maybe it's different to others?) I will gladly email you any config info etc. you need
Thanks & Regards,
Chris.