asking here for some help so I don't sound such an idiot when I speak to the companies 
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If i have a virtual server and put my website on it, that's quite straightforward to actually do, just upload the file(s) which the website builder gives me. But how do I upload a programme? Do I need to sort something out so that the programme comes in as part of the website (so a web address like mywebsite.com/application) which then takes me to the front page of the application with logins and stuff?
Can a non-techy do it, or do I need to get someone who knows what they are doing to set it up for me? I need two applications on there (to let me work remotely), one of them will be really helpful (as they want me to buy the software ); the other one is less so, but I think I do actually need to know what I'm talking about in advance, so that I can ask the right questions!
I'm looking at Webfusion for the virtual server if that makes any difference, they seem quite good, and i do need quite a lot of capacity, which some of the cheaper ones don't offer.