Importer Plugins

Hiya,

When I tried to import xml, anti-splog marked as spam my blog.I've tried on Edublogs not get problem.but edublogs give white screen error.

I know here is not for Edublogs' problem but I want to talk about importing systems.Because I get some eror for example media importing.( not only for my network I tried another wordpress installs) (for example if you want to solve media importing problem you must run xml file twice)

Anyway what is your suggestion and idea?
My opinion this is very important point for success.

- begin brainstorming

Thanks.