Need full search text on a shared hosting web site using 8.1.x

I just signed up for web hosting with HostNine which offers PostgreSQL 8.1.x, which doesn't have the full text search support in the default installl. I requested that they run the tsearch2.sql from the contributed files on the server to provide me with those capabilities since I don't have super user access to the database server, but they just denied my request. Are there any work arounds to provide this support or something similar within PostgreSQL? I'd hate to have to cobble together an inferior basic search capability in PHP if I didn't have to...

Thank you,
Raymond