Diane,
I have seen the article and attempted to follow it. I did a mail merge, then used an existing list for Select Recipients. Then I inserted each field separately for Insert Merge Fields. After that I updated the labels.
The format was correct, but when I previewed the results, there were only 7 entries and that's what printed. I moved the data around so I could print at least the next entries on the next 2 rows of vacant labels. It would be more time consuming, but I thought I could print the labels 6-9 at a time in the spaces that were available. I did that successfully once, but after that, when I previewed, all the spaces were blank. I tried again today, and same result.
I've had a similar problem for a number of years and have been able to overcome it by breaking the data up into separate documents, i.e. addresses 1-15 as a document and addresses 16-30 as another and that was OK. I also tried making separate tabs for the data, but only tab 1 would print. Which is why I made separate documents. This year has been the most "challenging," though I'm printing less entries than in years past. But it's still very confounding.