I have implemented "Employee Directory" on my portal using People Search Core Result Webpart. I want to create two column layout to display the results. How can I do that.
You could use the DataView web part to help you style your search results.
Here an example of the exact same exercise, perfectly valid under SP 2010/2007
In your XSLT you can use a [position()mod 2=1]
predicate to select results for the first column and then use following-sibling::*
to select the corresponding result for the second columns.