I have a Socialengine 4 PHP license for sale for use on one domain that was never used. You still have access to all updates. Support is expired, which you can optionally renew. Current version is 4.8.9. This is the starter package. See here: socialengine.com/buy-social-engine. The jobpost module from radcodes will also be included: radcodes.com/product/jobpost with access to updates as well.