Cannot import theme content, please help?

My site is hosted by Yahoo. I am trying to import content using cherry plugin>import content. I get warning window saying server settings need to be increased, by hosting provider. Yahoo customer service reps have no clue how, or even if, they can edit these settings. They say it’s in the wordpress settings. WordPress says it’s it’s yahoo’s settings. All day all night with this same problem, bridges are looking surprisingly attractive right now. Please, can somebody help aim me in the right direction to resolve this?