Wonderful script, but was reading the terms of the license, which I found a bit confusing. It says that with a single license the script can be installed on 'your personal websites', but not third parties. Basically I bought a license for one specific website for a client as part of my freelance work, but the client wants to know if the same sitemap code could be batch rolled out to all his other websites under the same license. If this is violation of the copyright, and if so, do you happen to have another license that could be used and how much it would be.. on first read of your license it would suggest it wouldn't be a violation, but not strictly my own personal websites - not clear to me if it is or isn't.
Hope to hear back soon.