Hosting a compo is easy even if you don't have some webspace to upload compo tunes to, and even if your DCC is broken!

First of all, you need ops for hosting a compo, so ask some op in the channel for temporary +o. For hosting compos, you can use Saga's compo upload tool. You need a hoster account for that, but most ops can give you one, just ask them. Log in and open a compo there and allow people to upload files (this is enabled by default). Now you're pretty much set. Upload your sample pack somewhere (f.e. at http://s.engramstudio.com/upload.cgi) and announce it in the channel topic. Now compose your tune and wait... :)
After an hour, you can close the compo in the upload tool and download the votepack (and probably make it downloadable if you can't host it yourself). Now you can use the built-in online version of lazyslash to administrate the entries and votes. To keep track of everyone, voice everyone in the channel who has uploaded a tune and devoice them when they've cast their votes. Once you're done with the compo, you can delete it in the upload tool (unless you were using it for hosting the compo - please don't delete the compo in this case!)