Nothing really. x10Hosting doesn't interfere with anything in your site and frontpage. The only thing is if your trying to do ASP/ASP.NET I'm not sure if it will work on our servers. That is probably what would be your only concern.
What is ASP/ASP.net? Are they Mircosoft's very own website programming language? If this is so, I will be alright as I am new to website making and HTML seems fine for me for now...