From WP Windows to WP Linux: PROBLEMS!!

Hello everybody,
For a series of circumstances I’ve installed and developed a wordpress site on a windows machine while my final destination was a linux server.
I thought it was not a big problem, since WP is just WP on both systems, but I was wrong.
It looks like that in the options table, inside the WP database, the windows WP writes different values from the linux WP.
An easy example, the upload folder is specified on a “C:” address that of course is not available on the linux server. But most of this differences are more subtle than this and I’m stuck.

The effect of this differences is that the website runs (some minor problems) but I cannot access the admin pages. No login, no anything. Just white pages!

I tried to create a clean db and move the content tables of the first db to the second, but while everything start to function, I’ve got some weird problems on the admin side with occasional white pages and strange behaviour, mostly in the installation of plugins. I thought that maybe some differences are even on the content tables of the db (posts, postmeta, ecc.) that I naively copied.

I’m asking myself if someone with a better knowledge than me of the wordpress db structure (it’s not hard at all!!), in this Xmas day 2009 could help me solve this problem, maybe telling me exaclty where I have to look (and tweek) to convert the first win db in a fully functional linux db.

Thanks very much!
And… Merry christmass to everyone! ??

Enrico