Just follow the instructions at The WPMacApp (WPMac Appliance): a system for running WordPerfect for the Macintosh on Intel-based Macs. You get WordPerfect, no biggie, the magic ROMs, and by adding a folder with your classic apps to your normal apps folder you can bring them up using the unix folder and run cricket graph, statview, clr anova and other old but useful old apps. You can copy and paste the results into a wordperfect file then same it as a pdf and use run it back in 10.6.7. If you want to continue to use older apps, do not upgrade to Lion.