(Cover) - EN Showbiz - Heidi Klum and Seal's divorce is reportedly stalling as they are disagreeing on several things.

The model and her musician partner caused widespread shock when they announced their separation at the beginning of the year.

Their break-up is yet to be finalised, apparently because they have butted heads over key details.

Heidi requested primary physical custody of the four children they raise, but Seal wants to share. He has also alleged they do have joint assets, following Heidi's claim there are none.

The most recent disagreement came after Seal let pictures of their children feature in an advertising campaign for a digital camera.

"Heidi felt that the children had gone through enough since their parents split and she didn't want their private moments out there for the world to see. But Seal maintained he had every right to use his personal photos - and, moreover, that it was a done deal and out of his hands," a source claimed to Star magazine.

"Heidi isn't trying to cause trouble. She's just trying to protect her brood."

The campaign was later withdrawn.

Since the split, Heidi, 39, has not been interested in dating. Instead, she is focusing on making things as easy as possible for her children.

"She's not interested in beginning another relationship right now. Her primary goal is getting the kids through the divorce and making sure they are healthy and happy," the insider explained. (C) Cover Media