make website resolution independent

I`m making webstore for myself and I`m trying to make it resolution independent. I wanted to with 2 frames; main and the basket frame. I got tables with borders in bouth frame and I can`t get the border lines to be like continious line. I if Y check venomz3.no-ip.info Y know what I mean. The border lines go allmoust continiously but when changin resolution the difference goes bigger. Sould I force scrollbar to basket frame and the force it to disabled so after that it maybe possible to use same percents like upper frame. I`m tend to do it compatible with few major browsers. Any other suggestions like colors and security are also welcome.
-Jarde-
[657 byte] By [venomz3] at [2007-12-25]