Yeah, exactly.
Well, I was able to solve the file issue with Matrix1Utils datafile I/O plugin, which works flawlessly for me - and much probably to anyone else, too.
I am still wishing to find a way to posting on Facebook or Twitter from inside a DBPro program, and I didn't find anything valuable in their tutorials - probably because I'm a plain n00b, I think.
Well, thanks for all, folks. I love to post here because, although DBPro is almost extinct, there are still cool people to help a desperated wannabe programmer like me.