Keep in mind a few things...
* If you're downloading from people in mIRC, they are likely to be using different scripts with different commands, so you would have to program something to figure out the correct commands for each person.
* Most people out there who share files of any sort do not want people using scripts to automate the process to connect and download files. If you are caught doing so, you may just find yourself permanently banned from getting files from that person or even the channel.
* Downloading files in mIRC is not the best way to get files and tends to be noticeably slower than using other methods.
* Most people downloading files in mIRC are downloading illegal files and that's a good way to get yourself into trouble.
Beyond that, a script *could* be made, but would be a bit complicated to avoid the issues in the first point I made.
