change script from SLA FileUP to ASPupload

Hi We have a very simple and small job that needs to be done ASAP. We've moved a site from one server to another, and the new one uses ASPupload - but the old server had - SLA FileUP. The scripts no longer work. We've had another developer look at this, but they turned out not to be an expert in this area. We need someone who has experience with both of these, who knows they can fix it ASAP. Many thanks