If you're at an airport that you've downloaded add-on scenery for, it's odds on that the positioning of the taxiways and so on are different to the default.

You need to search for an AFCAD file (if one isn't included) and also AFCAD itself (freeware).

These will enable you to replace the airport layout as FS2002 sees it for the purposes of both moving A.I. aircraft correctly along the taxiways and to the correct gates, and also will correct the path of the progressive taxi line.

You can upload images here by using the "Upload Images" link at the top of the forum. Instructions are included in the link.

Once you have the url for your pic, open a new message and click the 4th icon from the left on the second row above the text box. It looks like picture. This will insert IMG tags into the text box. Between them you will see "URL". Delete URL and replace it with the URL of your pic.

Don't leave any spaces at either end of the url, and make sure the picture name is identical to the name of the pic you uploaded. It's case sensitive, so for example, if your pic is named "Mypic.jpg" and you add "mypic.jpg" to the end of the url, it won't work.