PLankbender. I had a look at the sheet you are using, i'm sorry but I cant make head or tails of that.
If you paste in details and you get splitting columns like you say, you need to manually highlight the columns and hit the merge column button (after unprotecting the worksheet.. tools --> Protection --> Unprotect worksheet, enter password pprune).
I've experienced this when i've tried to paste in data in multi column groups. I've found if I paste in the names from JUST the 1 column, ie PIC, then I dont get that problem.
Good luck.