It is sensible to wait until financial issues have been resolved before applying for a decree absolute, your friends should keep in mind the possible legal costs in dealing with a dispute, compared to the value of the issue that is in dispute.
The decree absolute will only be issued at the request of the petitioner six weeks and one day after the decree nici has been issued, if the petitioner does not do so the respondent can apply three months later for the decree to be made absolute, with an affidavit setting out the reason they are applying.