I purchased Lightroom 5 from e-bay and he sent me a bundled full version. Will this bundled version be registerable? Should I expect complications from a bundled version? Is the bundled version the same as a non-bundled version if they are both full versions?
I never heard of "bundled" Lightroom.
There is only one version of Lightroom. If you received a serial number, and you can install and entered that serial number you should have no problems. However, since you purchased on eBay, you will just have to give it a go and see what happens.