Do you have an existing wiki or blog using other software, and would like to convert it to ikiwiki? Various tools and techniques have been developed to handle such conversions.

In addition, JoshTriplett has written scripts to convert Twiki sites, see his page for more information.

Also consider using jekyll-import, which imports into Jekyll, granted, but it already supports a bunch of CMSes and the markdown syntax of Jekyll may just be compatible with your ikiwiki.