OK, so it was wipe first, OS .706, then the .668 firmware download right?
Welcome to Ahmed Fahmie
After looking through this thread, I have decided the error is between the "firmware" when in fact, it's only an OS upgrade.
You were trying to install 2 different Operating Systems over each other, therefore, the only correct OS you should be installing is this one:
Official: OS v18.104.22.1686 For BlackBerry Curve 9300 via Vodafone Essar Limited
How to Upgrade your BlackBerry's Operating System (Pictures and Video)
To be on the safe side, completely wipe your BlackBerry Curve 9300 using BBSAK, and re-install the latest OS official from Vadafone as I have posted the link above for you my friend.
If you're unsure how to go about installing and/or upgrading your 9300, please read over the above thread, and if your have any further questions, please contact either ghostryder or any other BBOS Staff anytime, throughout the BBOS Forums.
Last edited by grimreaper; 12-27-2011 at 07:59 PM. Reason: correction
That's great news. After hearing grimreaper's explaination and some more digging on the links you posted, I saw that the firmware was indeed the .668OS and that was causing your issues. Glad you're up and running.