Yup, and believe it or not, I'm not writing in caps

Anyway, I got my little server running on Windows XP without any major hassle, found it on the internet server list, and figured out how to set myself as admin. However, I got 2 problems that I don't really know how to resolve:
1: Earlier I was using TJW's modified tremulous.exe, but before I did the server tutorial I made a clean new install of tremulous. Now, when I replace the original executable with TJW's tremulous will start loading, then I get the infamous "Tremulous.exe encountered a problem and had to be terminated" error, and it crash. Tried over and over, and this only happened with the modified .exe. Tried to download it again if it was broken but that didn't help either. And I do need the guid to set myself as admin so...

2: I can connect to my server online but not local. Anyone else who have seen this before?
Some help here would be most appreciated.