oki... really need to set this straight
DarkBasic 1.06+ has FTP commands
DarkBasic 1.10 has DirectPlay (for multiplayer games) commands
however ... to continue using the DirectPlay commands after the 30day Enhancements Trial you must purchase the DarkMatter w/Dark Basic Enhancements pack ... or the Enhancements Pack direct.
As DarkMatter is $19.99 from Amazon.com and Enhancement Pack is also $19.99 from DBS - mightas well purchase DarkMatter and get the extra models and textures
Now you can upgrade Dark Basic Lite upto 1.09.2 (as it is recognised as the demo version) ... but Dark Basic CD can be upgraded to 1.13 (which is the latest patch)
none of the patches require a previous one to run, however if you use Dark Edit (1.49 supplied on CD) and upgrade to 1.10 or better you must goto
Dark Edit's Site and download 1.56 for it to work with the Enhancements
as for learning the commands, i'd suggest you learn Memblocks and how they're used ... then get into connecting using multiplayer commands, and finally using them

learning in that order means you're not learning several things at once and you can concentrate properly at the tasks in hand. Checkout the EXAMPLES within the help file
Tsu'va Oni Ni Jyuuko Fiori Sei Tau!
One block follows the suit ... the whole suit of blocks is the path ... what have you found?