Why not use
CSV To Wordpress Post v2 Plugin
Yes its my script! and no im not promoting it, its already been posted so im just letting people know it works great with the latest wordpress version but it doesn't support anything like tags, or time stamps, but its very very easily modified. And best of all its free, i don't gain anything from it.
I've had over 5,000 downloads of the script, which is available in plugin or manual.
And i've had 2-3 successful datafeed blog/sites, its very easy to make unique content from feeds with a little bit of a twist and change here and there. my most profiting data feed site makes around £800-900 per month for the last year!
I don't offer support with errors and stuff, but if you get errors it might be because of conflicting plugins so disable everything try the csv plugin then re-enable everything again.
It lags with big data feed files, and it might hang when uploading, but just upload leave it 5 mins and come back to it, lots of server lag etc.
Best thing i've found for testing with this plugin is install a local web server like MAMP, bang wordpress on and have a play around!
enjoy!.