After reading through various reviews regarding mic pre
Have you actually bought the Scarlet Solo? If so IGN why? You say you read up on things?
Anyhoos, IF you have the beast try ASIO4all, might work. If not you will need to upgrade to Windows 7.
I did this a couple of months ago, with some reluctance, with my one remaining XP Pro machine. I really wanted to keep one PC with XP (it did all I needed it to and was handy for helping guys like you!) but the limitations of IE8 eventually forced my hand. You can download a test program from Msoft which will tell you if the PC is capable of running W7 and if you can run the 64bit version but the latter is of little use to you (afaik) unless you have, intend to get and can fit more than 4 G of ram.
Then. installing W7 on an XP machine is not trivial. Because you are "jumping over" Blista you need to format your hard drive and make a clean install. Actually if the PC is fairly powerful it is worth removing the old system drive and fitting an SSD as the "C" drive.
But, unless you are fairly PC cute it is probably best to buy a refurbed W7 machine (I have never had it but by all accounts you do not want 8/8.1) .
MODs!!! I am still getting truncated quotes even in Advanced mode. This is on an HP i3 laptop but I have just tried a W7/64 desktop and the same thing happens. Pretty sure it does not happen elsewhere but will check.
Dave. (NB OP if perchance you HAVEN'T bought the Splo? Don't, anyway.)