I ordered the XCSEO Pro is available for $119.99 Oct 15, 2008 and sent couple emails to
support@phpsitesolutions.com and
jon@phpsitesolutions.com for installation supporting but I never got any answer from them.
I am not sure that company is existing or not but the amount has been charged on my credit card.
It looks great but I think there is a bug or some kind of code has to be fixed for x-cart 4.1.10 and 4.1.11
After installed it on testing environment link than the each link comes with page error.
Do NOT BUY IT until you heard something from them.
Also I searched the following link:
http://forum.x-cart.com/showthread.php?t=39752&highlight=phpsitesolutions
MODERATORS NOTE: This vendor has stopped responding to e-mails/orders, and hasn't been seen or heard from in over a month. Until this issue is resolved, I would highly recommend that you don't order from this company.