Hi!
Well, I don't know how WS2003 works, but:
- check for any firewall/bandwidth/proxy settings or something that could affect files transfers.
- try disabling your antivirus real-time scanning if one.
- use a fresh installed mIRC without any scripts (like eXcursion script)
- have you experienced any other problems with files transfers? (using ftp, http, etc...) if so, check your Internet settings / ethernet card / router/modem/hub/switch hardware.
And don't forget, you're using a trial version of WS2003, it's maybe a beta release with a different name :P
