OK. So. We have 2 hosts and 2 domains. Host A is the registrar for maindomain.com and addondomian.com (fake domians obviously). Host B has our currently running website, so we have set up maindomain.com to be on Host B's nameservers (but still registered with Host A). We are developing a wordpress substitute for our website, which is being developed on addondomian.com
My problem is that our FTP doesn't work. If I put in the FTP for http://ftp.addondomian.com, it doesn't go through (no idea why), and http://ftp.maindomian.com is directed, correctly, to Host B's servers!
Is there any way for WordPress to edit files and such without FTP?