Can't download old previously bought software to new computer or upgrade to Lightroom 5 without buying a new package!

Hello Support have emailed a request before but it goes via Forums which do not help.I have come overseas for a few months and must still work, and need to have access to download software I have previously bought as  own as I have a new computer. I have 2 versions of Master Suite and just need to be able to download one. Particularly Photoshop and Adobe Acrobat. The Lightroom version 4 is on this computer.I have been trying for months just to upgrade to Lightroom 5 too, but there is no option for this, other than having a whole package? Your site no longer allows one to download old software when a new computer arrives. This is urgent,please help! - and the emailed form that was meant to come to me half an hour ago didnt' arrive at my inbox! thank you in advance