i dont think its the actual /browser window it uses, althouth it does connect to a web address.
But i agree you prob have an old version, or using another mod which is clashing with it.
i use v3.3 and works ok. although never used it before
all i can think of if u cant get it to work is use /loadui and choose default.
then do the same to load profit back after.
and there is always the possibily that the web site was down