Sheet Macro For Preventing Paste Not Working

I am working on Excel 2000. I am creating a protected worksheet which will have conditional formatting and validation on manual input cells (formatted to light yellow). I want to make sure that people do not accidently forget and paste data into those cells. I read up on solutions from this thread; [url] and most of it seems to be more complex than what I needed (and I couldn't get it to work)

I copied some code from this website post
[url] to my worksheet.

It works fine if the Validation criteria is set up simultaneously (i.e. it's all the same) but does not work if the columns have different validation criteria. How can I modify it to work under those conditions? I have included two workbooks, one in which the val critieria is identical (and it works) and one in which it varies between columns (and it doesn't work). I also noted that if I modify the one that doesn't work to make it homogenious, it still doesn't work unless I go back and highlight all and reformat that way.