upgrading desktop application

We are looking to recruit a software developer, with experience in Visual Basic & C#. The project concerns the upgrading of an existing desktop application, which has been developed in visual studio 2005 with .Net Framework 2.0 and uses the libraries Asp Map & Pegasus Imaging. Urgent Required upgrades 1. Software compatibility with 64-bit operating system 2. Adding, except from Internet Explorer, cross-browser compatibility: Firefox, Google Chrome, Safari. Deliverables Upgraded source code with debugs & Setup.