No problem man
Things have changed a lot here of course with regards to trs2004 but I just wish I would have known some of this stuff at the beginning.

Of course, many people here have been so kind and helpful...I really like this community and style of game for the most part.
Hmm, perhaps there is another way to find things you want. Just download a larger route, open it up in surveyor and explore! Find the things you like and use them.

I guess the rest is just trial and error and based upon what you are wanting. For me, I'm try to model/play around with North American rolling stock/scenery so find the region you'd like to emulate and refine your searches based on that region. For example, I love CN and CP stuff, so if I want to narrow things down, I just type those in and see what comes up. If I find something that's awesome, I'll check the creator and then search their username to find other things they have made...
I guess the key is to just experiment.

I think it's fairly simple and I hear that in trs2006, it's much harder to find things, at least at first until you get used to it. I also recommend you get a program called trainz objects as it can error check and help fix some problems with things that you download (others make mistakes sometimes).
Either way, make sure you get your value of your first class ticket.
As for polygons, well basically, the more there are in something, the more your computer has to work at processing them. Something that has a lot of polygons can be okay if it's the only thing you are looking at (lets say a big steel mill where you drive slowly to get into) but at other times, it can be a very bad thing to do, especially for a city or a switching yard (where you might be driving by fast and find things just slow down a little bit too much or to a point where a turtle passes by...). I found that out the hard way with vmd rails (they look great but are higher on the polygon count and my comp slows down too much when I use them).
If you are going to build a route, I'd suggest you look at route building tutorials on the web. I forget the address (just type that into google) but they explain how to lay the track, signalling, etc...
I'm in that process and so now I have to relay the track (I picked a lower polygon counting track that looks alright) and I'll re lay it properly so when I start putting in signals, I might be able to get AI trains running properly...

otherwise it's a p.i.t.a to do that...
The website with the low polygon tracks also has some other cool stuff, so give it a browse...
No worries about the assistance...give me a shout if you have any basic questions, or just pm me. I'm far from being a pro, but I could help out with basic/intermediate problems. I have to give back to the community somehow right?
Gisa ^^