Help with Graphics on XP/Word Perfect

I just got a DELL Dimension 310E with Windows XP Professional.  Please understand that I know very little about computers!  Anyhow...I had Word Perfect installed since I used it so much with my last PC.  My problem involves clip art.  I use it constantly with my work.  On my old PC there seemed to be much more and much better clip art.  Also I had HALLMARK GREETINGS factory installed (although DELL also sent me the CD & the CD had to be inserted to use it).  I've tried installing GREETINGS & it shows up in my Programs & on desktop but I get an error message saying SOMETHING IS MISSING & to reinstall.  I've reinstalled several times but it still doesn't work.  Could it be that GREETINGS is not compatible with my new PC or with XP?  Also, is there a big difference between XP HOME edition & XP PROFESSIONAL.  I had understood I was getting HOME but see that I have PROFESSIONAL & that scares me a little.  Any help to both of these issues would be very much appreciated.  Thanks!