personal details

Hi All, I have a question regarding Custom Field groups. I'd like to have custom groups in the Personal Details section for my custom fields, such as; Job - education etc. I have already seen a great example for XF1, however, this is not up to date anymore, please see...

Does anyone know if this is possible with 1.5 out of the box, or if an add-on exists to do it? We run a sailing forum and have found that the very best spam blocker is to ask new users a few questions about their sailboats during registration. That tends to trip up the guys in Bangledesh. Thanks!