Hello, i have read your project description, i understand what you want, and i would like to offer you my services. I can upgrade your Magento website to the latest version, and apply the additional patches (PHP 5.4 and security patches). I have excellent knowledge of Magento and related technologies, plenty of experience with them, most importantly including experience with upgrading Magento and applying patches, so i can finish this project quickly and to your full satisfaction. Feel free to contact me by private message to discuss the details. I'm looking forward to our cooperation.