Direcway/Hughes.net

Hi,

I recently moved to the country and so was forced to get Directway Satellite Internet connection.  It is a DW7000 system.  I got it about 3 months ago and it has been ok with general browsing/searches etc.  The trouble has been in doing maintenance on my website which is hosted by Website Forge.  They have a great WYSIWYG editor that used to (when I had DSL in another location) allow me to pretty much do anything with my site.  Since I moved and switched to the satellite internet connection, I have had nothing but trouble.  This is not just uploading but downloading as well.  I am constantly being blown out of being logged in. Whenever I try to make a change to a page, the page returns a "Page Not Found" error message, if I then hit the refresh button, I get blown out of being logged in and end up back on the home page of my website host.   The text editor sticks, the pages don't reflect changes I make, and the list goes on and on. 
I am so frustrated because my website host keeps telling me it is the ISP and Direcway keeps saying that it's the ISP.  I have spent hours and hours (many of them on hold with Direcway) trying different combinations of settings on my computer, disabling anti-virus software, lowering security settings, enabling session cookies, ad nauseum. 

Does anybody know how I can get this to work?  I had previously checked into alternative satellite systems before I commited to Direcway because I read so many bad things about them on the Net (though they were from 2002 and earlier and Direcway said those problems were corrected-ha!)  The only satellite system I was able to get was Direcway.
HELP!