PHP and ASP.Net for Designer Studio

Hi, Lately, I have to work to make a T-Shirt designer Studio in two site, the difference is that two site were made in PHP and ASP.Net respectively. But the common this that comes as most difficult part in this is obviously designer studio itself. So, what exactly my problems are with studio, well both the language support Graphics with there own method and style, PHP provides a Extension to its platform called GD Library (yet another Good Open source Code) and ASP.Net has its well know System.Drawing Namespace to help me. With PHP Codes is very simple and sequential for me to write, just make a function call and it start creating Image, Quite ease and result are good. But when I start working on ASP.Net project, Image creation is much easier if you have idea on how to make bitmaps and know some theoritical knowledge about them, which I don't have but thanks to some good men work available on Internet, I am able to complete them. But whatever language you choose, you need to make the interface in FLASH, as I tried Javascript at first, but that was a sad story for me. Anyway more details on this will be posted soon. Sumit Gupta