I'm working with SW Premium SP3.0 and have Adobe Illustrator CS5 on my system and this should allow .ai files to open in Solidworks but I'm still getting the error "Adobe Illustrator version CS3 or later is required to import .. to Solidworks". Is there a setting that needs to be made?
I checked on the knowledgebase and they said this issue is resolved in service pack 5 of 2011. SP 5 has not yet been released and may not be released until 2012 is released.