Here are some links for you to try. I don't know if any of them have standalone Publisher.

Nov 11, 2018  Microsoft Office 2007 Professional ISO Free Download 32(x86)/64-bit(x64) for Windows 10, 7, 8, 8.1, Vista, and XP. It is the full offline installer trial version setup single click download. Jun 18, 2016  Microsoft Office 2007 Free Download includes Word, PowerPoint, Excel, Outlook, Access, Publisher, InfoPath and Communicator. Download Office 2007 and install full-featured software for a 60-day trial period.

NOTE: if you do not have the installation file on an “official” MS installation disk, you should burn it to one or more DVDs for future use! MS will stop offering the 2007 downloads at any time. It is already hard to find them. And at the same time, write down the product key on the DVD. You need both items for future installations, say after your computer crashes and you have re-installed windows. At that point you won’t be able to extract it from the registry and won’t remember where the online account is.

Office 2010 / 2007 Download locations - http://answers.microsoft.com/en-us/office/forum/office_2010-office_install/here-are-the-download-locations-for-office-2010/ac67aa2f-dc1c-46f4-8b1d-ca00b3f02a18

www.getmicrosoftoffice.com - 2007 Office downloads (confirmed)

https://www.microsoft.com/office/downloads/ - Full Retail FPP download

https://www.microsoft.com/office/backup/en-us/default.mspx - Media-less License Kit MLK download, Office 2007 Backup disk

http://trial.trymicrosoftoffice.com/msft-orpc/default.aspx?culture=en-US - MLK download/backup for Home & Student (be sure to say yes to the question!)

Microsoft Publisher 2007 Download Free

http://www.heidoc.net/joomla/technology-science/microsoft/51-office-2007-direct-download-links - Here you'll find official download links for the installation files of most Office 2007 suites, single components and language packs in 38 languages. All packages are officially hosted by Digital River, Microsoft's online distribution partner.

Microsoft Publisher 2007 Iso Download Torrent

http://e5.onthehub.com/WebStore/OfferingsOfMajorVersionList.aspx?ws=8a314897-739b-e011-969d-0030487d8897&vsro=8&pmv=e63fd66c-93d1-db11-9b6d-0010c6cb78ad&cmi_mnuMain=bdba23cf-e05e-e011-971f-0030487d8897&JSEnabled=1 – They still have Viso 2007 Pro but you need an account. If you contact them and you already have a product key you MAY be able to convince them to give/sell you the installation file.