You can't, Intuit doesn't provide any kind of alignment adjustment.  You can try moving the labels over a tad in the printer feed to see if that helps.  You also can try printing them on plain paper and then place them on a photocopier (aligning them on the copier glass over a tad or two) and then copy them on to the labels.  That's the only half baked fixes that I can come up with and I haven't seen anybody else come up with anything more creative.