Hello,
Thanks for the feedback.
I'm currently putting together a few enhancements to release a minor update. I will definitely look at incorporating your first suggestion into this.
As for your second suggestion, it will require thought on how to streamline it into the existing interface without taking away the simplicity which is the goal of the software. Most people would only have one source of income which is their salary, and the application displays the total budget so some quick calculations would suffice. However, if there is enough requests for this feature I will definitely include it sometime in the future. Sorry if this isn't the answer you might be hoping for.
In regards to the reports, Cashcow uses Safari to displays the report inside the application. Does Safari display Pdf's ok on your system? If you would like to send me a few screenshots at bao@ratfacestudios.com I might be able to assist further. Also be sure to let me know what version of Safari you're running (to check the version, click on the Safari menu and select About) and what version of Mac OS X. Bear in mind I'm off to celebrate Easter so I may not be able to respond quickly. Depending on what version of Mac OS X you're running, I found the following pages using Google which may or may not be helpful:
http://www.macfixit.com/article.php?story=20070404013904547
http://www.eduplace.com/pdf.html
Happy Easter!
Bao