Well CSS, tableless templates were the holy grail for x-cart developers at one time - and this was what 4.2 was all about - so if you want free templates of this kind, consider upgrading/installing 4.2. Building such a template for 4.1 is a massive massive job - some people spent a long time trying to achieve this, with limited success. Those that have done it are unlikely to be offering their work for free. A good one that is not free though, can be found at
www.xcartmods.co.uk