It's very difficult (impossible) to emulate all the bugs in a browser without running the browser. Emulators can emulate the required behaviour but generally not the bugs. So unless you actually do what people like browsercam have done and set up a bank of machines running the browsers and screenshot them, it's a bit pointless.
P > well i'm not trying to use an paid-online tool > i'm trying to build open source free tool. ***************************************************** The discussion list for http://webstandardsgroup.org/ See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list & getting help *****************************************************